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What ’s New in V7.3

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Version Number: V7.3March 2011

Copyright (c) 2011 by Aspen Technology, Inc. All rights reserved.

Aspen Acol+™, Aspen Adsim®, Aspen Adsorption , Aspen Air Cooled Exchanger, Aspen Basic Engineering, AspenBatch Process Developer, Aspen Batch Distillation, Aspen Batch Plus®, Aspen BatchSep™, Aspen Capital CostEstimator, Aspen CatRef®, Aspen Chromatography®, Aspen COMThermo®, Aspen Custom Modeler®, AspenDistillation Synthesis, Aspen Dynamics®, Aspen Energy Analyzer, Aspen FCC®, Aspen Fired Heater, AspenFiredHeater, Aspen Flare System Analyzer, Aspen FLARENET™, Aspen HTFS Research Network™, Aspen HX-Net®,Aspen Hydrocracker®, Aspen Hydrotreater™, Aspen HYSYS Amines™, Aspen HYSYS Dynamics™, Aspen HYSYSOLGAS 3-Phase™, Aspen HYSYS OLGAS™, Aspen HYSYS PIPESYS™, Aspen HYSYS RTO™ Offline, Aspen HYSYSUpstream Dynamics™, Aspen HYSYS Upstream Dynamics™, Aspen HYSYS Upstream™, Aspen HYSYS Upstream™,Aspen HYSYS®, Aspen HYSYS® Thermodynamics COM Interface, Aspen HYSYS®, Aspen HYSYS® PipelineHydraulics - OLGAS 2-Phase, Aspen HYSYS® Pipeline Hydraulics - OLGAS 3-Phase, Aspen HYSYS® PipelineHydraulics - PIPESYS, Aspen HYSYS® Offline Optimizer, Aspen HYSYS® Hydrocracker, Aspen HYSYS® Reformer,Aspen HYSYS® CatCracker, Aspen HYSYS® Petroleum Refining, Aspen Icarus Process Evaluator®, Aspen IcarusProject Manager®, Aspen In-Plant Cost Estimator, Aspen Kbase®, Aspen MINLP Optimization, Aspen Mixed IntegerOptimizer, Aspen Model Runner™, Aspen MPIMS™, Aspen MUSE™, Aspen Online Deployment™, Aspen OnLine®,Aspen OnLine®, Aspen OTS Framework, Aspen PIMS Advanced Optimization™, Aspen PIMS Submodel Calculator™,Aspen PIMS™, Aspen Plate Exchanger, Aspen Plate+™, Aspen Plus Optimizer™, Aspen Plus®, Aspen Plus®CatCracker, Aspen Plus® Dynamics, Aspen Plus® Hydrocracker, Aspen Plus® Hydrotreater, Aspen Plus®Reformer, Aspen Polymers, Aspen Polymers Plus™, Aspen Process Economic Analyzer, Aspen Process Manual™,Aspen Process Tools™, Aspen Properties®, Aspen Properties Mobile, Aspen Rate-Based Distillation, Aspen

RateSep™, Aspen Reaction Modeler, Aspen RefSYS Catcracker™, Aspen RefSYS Hydrocracker™, Aspen RefSYSReformer™, Aspen RefSYS™, Aspen Shell & Tube Exchanger, Aspen Shell & Tube Mechanical, Aspen SimulationWorkbook™, Aspen Solubility Modeler, Aspen Split™, Aspen Tasc+™, Aspen Teams®, Aspen Utilities On-LineOptimizer, Aspen Utilities Operations™, Aspen Utilities Planner™, Aspen Zyqad™, SLM™, SLM Commute™, SLMConfig Wizard™, the Aspen leaf logo, and Plantelligence are trademarks or registered trademarks of AspenTechnology, Inc., Burlington, MA.

All other brand and product names are trademarks or registered trademarks of their respective companies.

This documentation contains AspenTech proprietary and confidential information and may not be disclosed, used,

or copied without the prior consent of AspenTech or as set forth in the applicable license agreement. Users aresolely responsible for the proper use of the software and the application of the results obtained.

Although AspenTech has tested the software and reviewed the documentation, the sole warranty for the softwaremay be found in the applicable license agreement between AspenTech and the user. ASPENTECH MAKES NOWARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, WITH RESPECT TO THIS DOCUMENTATION,

ITS QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

Aspen Technology, Inc.200 Wheeler RoadBurlington, MA 01803-5501USAPhone: (1) 781-221-6400Toll Free: (1) (888) 996-7100URL: http://www.aspentech.com

http://www.aspentech.com/http://www.aspentech.com/http://www.aspentech.com/http://www.aspentech.com/


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Contents iii

Contents

Contents ................................................................................................................. iii

Introduction ............................................................................................................9

aspenONE V7.3 ................................................................................................ 9 Introduction to Aspen Engineering .................................................................... 10

Aspen Engineering Workflow ................................................................................ 11

Aspen Process Engineering Console .................................................................. 11 Product Description .............................................................................. 11 New Features and Enhancements in V7.3 ................................................ 11 Compatibility Notes for V7.3 .................................................................. 11 What‘s Fixed in V7.3 ............................................................................. 11

Process Modeling (Aspen Plus) ............................................................................. 13

Aspen Plus .................................................................................................... 13 Product Description .............................................................................. 13

New Features and Enhancements in V7.3 ................................................ 14 Compatibility Notes for V7.3 .................................................................. 21

What‘s Fixed in V7.3 ............................................................................. 29 The OLI Interface ........................................................................................... 31

Product Description .............................................................................. 31 New Features and Enhancements in V7.3 ................................................ 31 Compatibility Notes for V7.3 .................................................................. 31 What‘s Fixed in V7.3 ............................................................................. 31

Aspen Properties ............................................................................................ 32 Product Description .............................................................................. 32 New Features and Enhancements in V7.3 ................................................ 32 Compatibility Notes .............................................................................. 36

What‘s Fixed ........................................................................................ 40

Aspen Properties Mobile .................................................................................. 42 Product Description .............................................................................. 42 Features ............................................................................................. 42 Compatibility Notes .............................................................................. 42

Aspen Custom Modeler ................................................................................... 43 Product Description .............................................................................. 43 New Features and Enhancements in V7.3 ................................................ 43 Compatibility Notes for V7.3 .................................................................. 44 What‘s Fixed in V7.3 ............................................................................. 46


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iv Contents

Aspen Model Runner ....................................................................................... 47 Product Description .............................................................................. 47

New Features and Enhancements in V7.3 ................................................ 47 Compatibility Notes for V7.3 .................................................................. 48 What‘s Fixed in V7.3 ............................................................................. 49

Aspen Plus Dynamics (formerly Aspen Dynamics)............................................... 49


Aspen Adsorption (formerly Aspen Adsim) ......................................................... 54 Product Description .............................................................................. 54 New Features and Enhancements ........................................................... 54 Compatibility Notes .............................................................................. 55 What‘s Fixed in V7.3 ............................................................................. 57

Aspen Utilities Planner .................................................................................... 57 Product Description .............................................................................. 57 New Features and Enhancements in V7.3 ................................................ 57 Compatibility Notes for V7.3 .................................................................. 58

What‘s Fixed in V7.3 ............................................................................. 58 Aspen Reaction Modeler .................................................................................. 58


Process Modeling (HYSYS) .................................................................................... 61

Aspen HYSYS ................................................................................................. 61 Product Description .............................................................................. 61 New Features and Enhancements in V7.3 ................................................ 61 Compatibility Notes for V7.3 .................................................................. 73

What‘s Fixed in V7.3 ............................................................................. 75 Aspen HYSYS Upstream .................................................................................. 75

Product Description .............................................................................. 75 New Features and Enhancements ........................................................... 76 Compatibility Notes for V7.3 .................................................................. 78 What‘s Fixed in V7.3 ............................................................................. 78

Aspen HYSYS Petroleum Refining (formerly Aspen RefSYS) ................................. 78 Product Description .............................................................................. 78 New Features and Enhancements ........................................................... 79 Compatibility Notes for V7.3 .................................................................. 84 What‘s Fixed in V7.3 ............................................................................. 84


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Contents v

Exchanger Design and Rating ................................................................................ 85

General Software Fixes ................................................................................... 85 What‘s Fixed in V7.3 ............................................................................. 85

What‘s Fixed in V7.3.1 .......................................................................... 85 Aspen Air Cooled Exchanger (formerly ACOL+) .................................................. 86

Product Description .............................................................................. 86 New Features and Enhancements ........................................................... 86 Compatibility Notes for V7.3 .................................................................. 87 What‘s Fixed in V7.3 ............................................................................. 87 What‘s Fixed in V7.3.1 .......................................................................... 88

Aspen Fired Heater (formerly Aspen FiredHeater) ............................................... 88 Product Description .............................................................................. 88

New Features and Enhancements ........................................................... 88 Compatibility Notes for V7.3 .................................................................. 90 What‘s Fixed in V7.3 ............................................................................. 90 What‘s Fixed in V7.3.1 .......................................................................... 91

Aspen Shell & Tube Exchanger (formerly Aspen TASC+) ..................................... 91 Product Description .............................................................................. 91 New Features and Enhancements ........................................................... 91 Compatibility Notes for V7.3 .................................................................. 93 What‘s Fixed in V7.3 ............................................................................. 93 What‘s Fixed in V7.3.1 .......................................................................... 95

Aspen Shell & Tube Mechanical (formerly Aspen Teams) ..................................... 95 Product Description .............................................................................. 95 New Features and Enhancements ........................................................... 96 Compatibility Notes ............................................................................ 106 What‘s Fixed in V7.3 ........................................................................... 106

What‘s Fixed in V7.3.1 ........................................................................ 108

Aspen Plate Exchanger (formerly Aspen Plate+) ............................................... 109 Product Description ............................................................................ 109 New Features and Enhancements ......................................................... 109 Compatibility Notes for V7.3.1 ............................................................. 109 What‘s Fixed in V7.3 ........................................................................... 109 What‘s Fixed in V7.3.1 ........................................................................ 110

Aspen HTFS Research Network ...................................................................... 110 Product Description ............................................................................ 110 New Features and Enhancements in V7.3 .............................................. 110 Compatibility Notes for V7.3 ................................................................ 111 What‘s Fixed in V7.3 ........................................................................... 111

Aspen MUSE ................................................................................................ 111 Product Description ............................................................................ 111

New Features and Enhancements ......................................................... 111 Compatibility Notes for V7.3 ................................................................ 111 What‘s Fixed in V7.3 ........................................................................... 111

Aspen Plate Fin Exchanger............................................................................. 112

Product Description ............................................................................ 112 New Features and Enhancements ......................................................... 112 Compatibility Notes for V7.3.1 ............................................................. 117

What‘s Fixed in V7.3 ........................................................................... 117


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vi Contents

Economic Evaluation ........................................................................................... 119

Aspen Process Economic Analyzer (formerly Aspen Icarus Process Evaluator) ...... 119 Product Description ............................................................................ 119 New Features and Enhancements in V7.3 and V7.3.1 .............................. 120 Compatibility Notes for V7.3 ................................................................ 134 What‘s Fixed in V7.3 ........................................................................... 134

Aspen In-Plant Cost Estimator (formerly Aspen Icarus Project Manager) ............. 135 Product Description ............................................................................ 135 New Features and Enhancements in V7.3 .............................................. 136 Compatibility Notes for V7.3 ................................................................ 147 What‘s Fixed in V7.3 ........................................................................... 147

Aspen Capital Cost Estimator (formerly Aspen Kbase) ....................................... 148 Product Description ............................................................................ 148 New Features and Enhancements in V7.3 .............................................. 148 Compatibility Notes for V7.3 ................................................................ 162 What‘s Fixed in V7.3 ........................................................................... 162

Icarus Evaluation Engine ............................................................................... 166 Technology Description ....................................................................... 166

New Features and Enhancements in V7.3 .............................................. 166 Compatibility Notes for V7.3 ................................................................ 174 What‘s Fixed in V7.3 ........................................................................... 174

What‘ Fixed in Supporting Products ................................................................ 174 Aspen Decision Analyzer ..................................................................... 174 Aspen Icarus Framework ..................................................................... 174 Aspen Icarus Reporting ....................................................................... 174

Energy and Flare Analysis ................................................................................... 175

Aspen Energy Analyzer (formerly Aspen HX-Net).............................................. 175 Product Description ............................................................................ 175 New Features and Enhancements in V7.3 .............................................. 175

Compatibility Notes for V7.3 ................................................................ 175 What‘s Fixed in V7.3 ........................................................................... 176 Aspen Flare System Analyzer (formerly Aspen FLARENET) ................................. 176

Product Description ............................................................................ 176 New Features and Enhancements ......................................................... 176 Compatibility Notes for V7.3 ................................................................ 178

What‘s Fixed in V7.3 ........................................................................... 178 Aspen HYSYS Thermodynamics COM Interface (formerly Aspen COM Thermo) ..... 179

Product Description ............................................................................ 179 New Features and Enhancements in V7.3 .............................................. 179

Compatibility Notes for V7.3 ................................................................ 179 What‘s Fixed in V7.3 ........................................................................... 179

Aspen Simulation Workbook ............................................................................... 181

Aspen Simulation Workbook .......................................................................... 181 Product Description ............................................................................ 181 New Features and Enhancements in V7.3 .............................................. 181 Compatibility Notes for V7.3 ................................................................ 182

What‘s Fixed in V7.3 ........................................................................... 182


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Contents vii

Process Development .......................................................................................... 183

Aspen Batch Process Developer (formerly Aspen Batch Plus) ............................. 183 Product Description ............................................................................ 183 New Features and Enhancements in V7.3 .............................................. 184 Compatibility Notes for V7.3 ................................................................ 184 What‘s Fixed in V7.3 ........................................................................... 184

Aspen Solubility Modeler ............................................................................... 185 Production Description ........................................................................ 185 New Features and Enhancements in V7.3 .............................................. 186 Compatibility Notes for V7.3 ................................................................ 186

What‘s Fixed in V7.3 ........................................................................... 186

Advanced Modeling Options (Process Development) ........................................... 187

Aspen Batch Distillation (formerly Aspen BatchSep) .......................................... 187 Product Description ............................................................................ 187 New Features and Enhancements in V7.3 .............................................. 187 Compatibility Notes for V7.3 ................................................................ 188 What‘s Fixed in V7.3 ........................................................................... 188

Aspen Chromatography ................................................................................. 189 Product Description ............................................................................ 189 New Features and Enhancements in V7.3 .............................................. 189 Compatibility Notes for V7.3 ................................................................ 190

What‘s Fixed in V7.3 ........................................................................... 191 Aspen Process Tools ..................................................................................... 192

Product Description ............................................................................ 192 New Features and Enhancements in V7.3 .............................................. 192 Compatibility Notes for V7.3 ................................................................ 192 What‘s Fixed in V7.3 ........................................................................... 192

Aspen Process Manual ................................................................................... 193 Product Description ............................................................................ 193

New Features and Enhancements in V7.3 .............................................. 193 Compatibility Notes for V7.3 ................................................................ 193

What‘s Fixed in V7.3 ........................................................................... 193

Aspen Basic Engineering (formerly Aspen Zyqad) ............................................... 195

Aspen Basic Engineering ............................................................................... 195 Product Description ............................................................................ 195 New Features and Enhancements in V7.3 .............................................. 195 Compatibility Notes for V7.3 ................................................................ 198 What‘s Fixed in V7.3 ........................................................................... 200

Operations Support ............................................................................................. 201

Aspen Online Deployment ............................................................................. 201 Product Description ............................................................................ 201 New Features and Enhancements in V7.3 .............................................. 201 Compatibility Notes for V7.3 ................................................................ 202 What‘s Fixed in V7.3 ........................................................................... 202


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viii Contents

Aspen Operator Training Simulator Framework ................................................ 203 Product Description ............................................................................ 203

New Features and Enhancements ......................................................... 203 Compatibility Notes for V7.3 ................................................................ 204 What‘s Fixed in V7.3 ........................................................................... 204

Aspen OnLine .............................................................................................. 205


Aspen Plus Based Refinery Reactors ................................................................... 207

Aspen Plus Catcracker (formerly Aspen FCC) ................................................... 207 Product Description ............................................................................ 207 New Features and Enhancements in V7.3 .............................................. 207 Compatibility Notes for V7.3 ................................................................ 207 What‘s Fixed in V7.3 ........................................................................... 207

Aspen Plus Hydrocracker (formerly Aspen Hydrocracker) ................................... 208

Product Description ............................................................................ 208 New Features and Enhancements in V7.3 .............................................. 208 Compatibility Notes for V7.3 ................................................................ 208

What‘s Fixed in V7.3 ........................................................................... 208 Aspen Plus Hydrotreater (formerly Aspen Hydrotreater) .................................... 208


Aspen Plus Reformer (formerly Aspen CatRef) ................................................. 209 Product Description ............................................................................ 209 New Features and Enhancements in V7.3 .............................................. 209 Compatibility Notes for V7.3 ................................................................ 209

What‘s Fixed in V7.3 ........................................................................... 209

Aspen Open Object Model Framework ................................................................. 211

Aspen Open Object Model Framework ............................................................. 211 Product Description ............................................................................ 211 New Features and Enhancements in V7.3 .............................................. 212

Compatibility Notes for V7.3 ................................................................ 212 What‘s Fixed in V7.3 ........................................................................... 212

PE/PD Console .................................................................................................... 213

PE/PD Console ............................................................................................. 213

Product Description ............................................................................ 213 New Features and Enhancements in V7.3 .............................................. 213 Compatibility Notes for V7.3 ................................................................ 213

What‘s Fixed in V7.3 ........................................................................... 213


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Introduction 9

Introduction

aspenONE V7.3As shown in the figure below, aspenONETM unifies all of the AspenTech

products and capabilities into a single cohesive system that allows users in

each process industry vertical to safely and predictably manage and improvethe performance of their enterprise operations.

Key capabilities:Use consistent models to design, optimize, and improve your plantoperations.

Design and de-bottleneck plants and processes for maximum

performance.

Gain control of plants and processes from a business perspective.


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10 Introduction

Look ahead to capitalize on opportunities and identify problems beforethey occur.

Measure plant performance.

Estimate capital and operation costs.

Introduction to Aspen

EngineeringAspen Engineering is an integrated engineering environment that providesbusiness value through the creation, management, and deployment of

process knowledge throughout the engineering enterprise.

The V7.3 releases of Aspen Engineering offer exciting new functionality and

key enhancements that further advance AspenTech‘s products, helpingcustomers to make faster decisions and operate more efficiently andprofitably within the areas of engineering design, simulation, and

optimization.

This document provides an overview of product functionality and details thenew capabilities and major enhancements for each product in the Aspen

Engineering Suite.


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Aspen Engineering Workflow 11

Aspen Engineering Workflow

Aspen Process EngineeringConsole

Product Description

AspenTech‘s Process Engineering Console™ is a framework for organizing

data from various programs associated with a project and for sharing thatdata between AspenTech programs. Version V7.3 of Process Engineering

Console is updated to work with the V7.3 versions of AspenTech products.

Aspen Process Engineering Console organizes the tasks associated with a

project into the following activities:

Properties Setup, using Aspen Properties or Aspen HYSYS.

Process Simulation, using Aspen Plus or Aspen HYSYS.

Economic Analysis, using Aspen Process Economic Analyzer (formerlyAspen Icarus Process Evaluator).

Simulation Workbook, using Aspen Simulation Workbook to collect and

process data from the models in this project.

Aspen Process Engineering Console stores all the data from these programs ina folder named for the project and lets you organize your projects so you can

find the data you need quickly and easily.

New Features and Enhancements in V7.3

There are no new features or enhancements listed for this release.

Compatibility Notes for V7.3

There are no compatibility notes for this release.

What’s Fixed in V7.3

There are no fixed issues listed for this release.


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12 Aspen Engineering Workflow


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Process Modeling (Aspen Plus) 13

Process Modeling (AspenPlus)

Aspen Plus

Product Description

Aspen Plus® is the AspenTech state-of-the-art steady-state simulation systemthat can be used for modeling a variety of industrial processes including

chemical, petrochemical, energy, metals, and refining. Aspen Plus contains a

comprehensive library of unit operation models and allows you to easily plugin proprietary custom models. In addition, Aspen Plus provides full Windows®

interoperability to facilitate the process and design engineer‘s work processes.Aspen Plus with the Aspen Plus Optimizer and Aspen OnLine modules provides

the framework to make optimization (including closed loop real-timeoptimization) a natural extension to simulation, process control, and decision

making. Aspen Plus automatically installs and works with the followingseparately licensed sub-products:

Aspen Distillation Synthesis, formerly the Aspen Split feature in AspenPlus, allows you to construct ternary maps and do azeotrope searches on

multi-component mixtures, as well as use the ConSep unit operationmodel for distillation design.

Aspen Rate-Based Distillation, formerly Aspen RateSep, allows you to

perform rate-based distillation calculations using the RadFrac unit

operation model.

Aspen Plus Optimizer allows you to perform optimization calculations in

the equation-oriented environment.

Aspen Polymers allows you to model processes involving polymers andoligomers. It includes databases, property methods and models, and

reaction kinetics models required to simulate polymerization reactors andprocessing plants.

Aspen Plus Dynamics, which enables dynamic simulation. This product is

installed with the Advanced options.

Aspen Plus is a mixed simulation and optimization environment supporting

both sequential modular and equation-oriented solution techniques for

process flowsheets.


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14 Process Modeling (Aspen Plus)

New Features and Enhancements in V7.3

This release includes the following new features and enhancements:

You can extract experimental physical property data for thousands of

binary mixtures using the NIST ThermoData Engine (TDE).

Integrated Economic Analysis now allows user-defined custom sizing andestimating methods through a new costing templates feature.

You can now view a greenhouse gas summary that reports the carbon

equivalents produced directly in the process or indirectly by consumption

of process utilities.

Aspen Plus simulation cases can be sent directly to Aspen Energy Analyzer

to evaluate and optimize process heating and cooling.

Conventional solid components can now be included in the mixedsubstream, making it much easier to simulate processes with solids.

See the sections below for a complete list of new and improved features.

Workflow and UsabilityThe new Start Page provides easy access to AspenTech news. You can

set the My News tab to display any RSS feed or disable the Start Page onthe Start Page tab of the Tools | Options dialog box.

The new Analysis toolbar provides easy access to features such as Aspen

Distillation Synthesis, Aspen Energy Analyzer, Aspen Flare SystemAnalyzer, and Aspen Exchanger Design & Rating.

The Pro/II converter has been enhanced and now supports a number of

features which were previously not supported or not converted correctly.

See the Compatibility Notes for a list.

There are now commands on the View menu to enable or disable the

display of Connection Streams and Measurements. These perform thesame functions as the checkboxes on the Flowsheet tab of the Tools |

Options dialog box but are more easily accessible. These also have

shortcut keys Ctrl+Alt+C and Ctrl+Alt+M.

Some shortcut keys and mouse controls used for navigating around the

flowsheet have been changed or added for ease of use and consistency

with HYSYS. In particular, the mouse wheel and Page Up and Page Downkeys can be used to zoom in/out by small increments, while Shift+PageUp, Shift+Page Down, and Home can be used for Zoom In, Zoom Out, and

Zoom Full. See the compatibility notes for the full list of these changes.

The Find Object command has been enhanced to allow you to search in aspecific Hierarchy level and to allow you to search for blocks or streams

using wildcards.

The Model Summary form now also appears in each supported block,allowing you to view and modify all scalar block variables for the block in

one place.

When you open a file and then save it, now the default save type is thetype of the original file. The default save type in Tools | Options is used

only for new models, and this is initially set to the more convenientcompound file (*.apwz) type. The default Aspen Plus file type stored

inside the compound file is now Aspen Plus Document (*.apw).


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There is a new option on the Setup | Simulation Options |

Calculations sheet to automatically generate an XML results file when

running an input file or batch run.

Now when you rename or delete streams after EO synchronization, a newdialog box lets you update/delete corresponding EO variable names

entered as specifications on various forms. In previous versions, these

names could not be updated automatically, leading to various problems.

You can now specify descriptions for EO variables on the EO Input | Configure sheet which will be saved with your model. This can be used todocument complex or custom EO models.

The installer now has an option to install without the SQL database forAspen Properties Enterprise Database. With this option, the database must

be installed on another machine and the Database Manager must be used

to configure the database connection. There is also an option in the Serverinstallation option to just install the database without any of the products

that use it.

Integrated Economic AnalysisMaterial costs for raw materials and products are now passed from Aspen

Plus to Aspen Process Economic Analyzer. Their totals, along withannualized capital cost, total utilities cost, total product sales, desired rateof return, and pay out period are now reported on the Summary tab on

the Equipment Summary grid.

Aspen Plus can now use costing templates with Aspen Process EconomicAnalyzer to specify the location of the project, units set, lifetime of the

project, and other parameters.

The costing template is specified on the Setup | Costing Options |

Costing Options sheet. Key parameters can also be changed here. You

can create custom templates in Aspen Process Economic Analyzer to

specify custom sizing and mapping options. This removes the need tospecify these options each time you perform integrated sizing and costing.

The Costing toolbar now also has buttons linked to the Costing Options and Stream Price forms.

Equipment weight and total installed weight are now reported for each

piece of equipment in the Equipment Summary grid.

Engineering EnhancementsAspen Plus now reports CO2 equivalents for greenhouse gases produced

by each unit operation block, those emitted by utilities used, and totals forthe overall process, as well as the carbon fee/tax for emissions. See

Greenhouse Gas Emissions in the help for details about this feature.

It is now possible to use Utilities in HeatX blocks with the Rigorous methods, only in Design and Rating calculation types.

Three new mass transfer and interfacial area correlations for packings

have been added for use in Aspen Rate-Based Distillation. HanleyPall

(2010) models Pall rings, HanleyIMTP (2010) models IMTP, CMR, and -

ETA rings, and HanleyStruc (2010) models sheet metal structured

packings.


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RadFrac, PetroFrac, and MultiFrac will now allow you to specify a columndiameter in rating calculations as small as 0.01 m. Previously the

minimum was 0.1 m. This will allow you to more easily model laboratory-scale columns.

Pressure relief calculations have been improved to make them more

accurate (see Compatibility Notes for details).

It is now possible to use an RPlug model without reactions (for instance,to model heat flux in detail).

In RPlug reactors with solids, you can now specify a solid holdup profilewhen you specify the liquid holdup profile. In this case the reaction rates

in vapor, liquid, and solid phases are all affected by the portion of thereactor occupied by those phases.

The Dryer model can now remove water from NC substreams in which it is

specified via the Moisture specification of the PROXANAL attribute, whenwater is specified as a moisture component. It does not operate on any

other moisture components in NC substreams.

The Pump model now has options for its vapor check in the same way the

Compr model does for its liquid check. See the Pump | Setup | Calculation Options sheet configure these options.

Common RXN_RCSTRR now contains catalyst data. This allows you to

access such data in user subroutines written for RCSTR blocks. See AspenPlus User Models for details.

Solids

It is now possible to use conventional inert solid components (specified asSolid on the Components form) in the MIXED substream. This allows you toperform simple solid modeling without the complication of using multiple

substreams.

Solid components with a particle size distribution still need to be used withone of the substreams that contain a PSD attribute.

EO formulations of Mixer, Flash2, Flash3, Decanter, Pump, FSplit, SSplit,Mult, Dupl, Selector and Streams support solids in the MIXED substream.Other models in EO do not support solids in the MIXED substream, and

will issue a warning if they are found. (Depending on the properties

available for these components, they may lead to errors in the EO modelswhich do not support them, or may run but lead to inaccurate results.)

The SFRAC property represents the solid fraction within the MIXED

substream. Previously, this solid fraction consisted only of salts, but now itmay also include conventional inert solids.

The new CISOLID-COMPS paragraph in input language specifies which

components are declared as solids. It is required only if you usecomponents of type Solid in the MIXED substream.

Properly-specified backup files from previous versions (including thoseembedded into .apw or .apwz files) will continue to work as they alwaysdid, with all their solids in CISOLID substreams.


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You can choose to put some of these solids into the MIXED substream andsome in the CISOLID substream. When you do so:

For most blocks, solids will remain in the substream in which they werespecified.

RStoic can be used to move solid components between the MIXED and

CISOLID substreams.

Solid products of REquil and RGibbs will be placed in the CISOLIDsubstream if it is present in the outlet stream, or the MIXED substream

otherwise.

NIST TDE with Binary DataThe NIST TDE feature has been significantly enhanced to include

experimental data for binary mixtures. The available data include VLE,

LLE, heat of mixing, density, viscosity, thermal conductivity, surfacetension, and others. These data can be used to perform data regression

using the existing Data Regression capability. These data constitute

virtually all available experimental binary data known to date. The

retrieved data can be viewed, plotted and saved to forms for further usein data regression.

For binary VLE data, TDE includes the capability to performthermodynamic consistency tests. The tests include a quantitativemeasure of the data quality (quality factor), which will be useful in helping

you select appropriate data sets to use.

This feature also includes a new workflow that allows you to perform dataregression or evaluation directly, thus enhancing ease of use. The NIST

TDE engine has been updated to version 5.0. The NIST-TRC databank hasbeen updated based on the June 2010 NIST SOURCE data archive and

version 5.0 of TDE; over 4000 more compounds have been added.

Data Regression EnhancementsThe evaluation feature of the standard Data Regression (Properties |

Regression | Input | Setup sheet, option Evaluation) has been

improved for VLE with 3 or more components and for LLE. Now a flash is

performed to ensure results will be consistent with results obtained byother methods.

Experimental binary data available in TDE can be used to populate theData form directly (Properties | Data | Mixture | Data sheet). When

you define a Data set containing two components, you can retrieve theexperimental data from TDE instead of entering them manually.


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Databank UpdatesNew APV73 database was created, containing new PURE25 databankbased on the January 2010 release of the DIPPR database. This databank

is similar to the PURE24 databank, but many parameters for a largenumber of components have been updated, and 42 components havebeen added.

Alias Name CAS Number

C22H44-D1 1-DOCOSENE 1599-67-3

C24H48-D1 1-TETRACOSENE 10192-32-2

C26H52-N10 1-HEXACOSENE 18835-33-1

C28H56-N2 1-OCTACOSENE 18835-34-2

C12H16-D4 5-O-TOLYL-2-PENTENE 6047-69-4

C7H12-N3 BICYCLO-2-2-1-HEPTANE 279-23-2

C8H14-N3 BICYCLO-2-2-2-OCTANE 280-33-1C18H24-N6 TRIAMANTANE 13349-10-5

C22H28-D1 TETRAMANTANE 27745-90-0

C10H10O-D1 3,5-DIMETHYLBENZOFURAN 10410-35-2

C14H14O4 DIALLYL-PHTHALATE 131-17-9

C19H38O2-N1 METHYL-STEARATE 112-61-8

C15H30O2-N1 METHYL-MYRISTATE 124-10-7

C17H34O2-N1 METHYL-PALMITATE 112-39-0

C10H12O2-N5 ETHYL-PHENYLETHANOATE 101-97-3

C8H18N2O2-D1 4-2-2-AMINOETHOXYETHYLMORPHOLINE 20207-13-0

C8H17NO3 BETA-MORPHOLINOETHOXYETHANOL 3603-45-0

C10H9N-N5 8-METHYLQUINOLINE 611-32-5

C4H9NO-N1 2-BUTANONE-OXIME 96-29-7

C6H14S-N1 ISOPROPYL-SULFIDE 625-80-9

C6H8S 2,3-DIMETHYLTHIOPHENE 632-16-6

C6H15CLO3SI 3-CHLOROPROPYL-TRIMETHOXY-SILANE 2530-87-2

C9H20O5SI GLYCIDOXYPROPYLTRIMETHOXYSILANE 2530-83-8

CLF3 CHLORINE-TRIFLUORIDE 7790-91-2

C6H15O3P TRIETHYL-ESTER-PHOSPHOROUS-ACID 122-52-1

F3P PHOSPHORUS-TRIFLUORIDE 7783-55-3

C8H4CL2O2-D1 TEREPHTHALOYL-CHLORIDE 100-20-9

C3H8N2O 1,3-DIMETHYL-UREA 96-31-1C2H6N2O-N1 MONOMETHYLUREA 598-50-5

C4H12N2O-D1 BIS-2-AMINOETHYL-ETHER 2752-17-2

C6H14N2O-D2 4-2-AMINOETHYL-MORPHOLINE 2038-03-1

C6H13NO-N1 N-ETHYLMORPHOLINE 100-74-3

C11H16O2-D1 PG-ALPHA-METHOXYBENZYL-ETHER 871518-84-2

C11H16O2-D2 2-ALPHA-METHOXYBENZYL-1-PROPANOL 857237-25-3

C4H8O2S-D1 METHYL-3-MERCAPTOPROPIONATE 2935-90-2


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C4H3F7O-N1 HEPTAFLUOROPROPYL-METHYL-ETHER 375-03-1

C9H8O4-N2 MONOMETHYL-TEREPHTHALATE 1679-64-7

C7H12O3-D1 ETHYL-LEVULINATE 539-88-8

C10H10MG BIS(CYCLOPENTADIENYL)MAGNESIUM 1284-72-6

C40H62O19 SUCROSE-ACETATE-ISOBUTYRATE 126-13-6

C5H10O-N1 2-METHYLOXOLANE 96-47-9

SIH3CL MONO-CHLOROSILANE 13465-78-6

APV73 also contains the new BIODIESEL databank containing 461

components including triglycerides, diglycerides, and monoglycerideswhich appear in biodiesel production processes.

Binary parameters have been added for the water-vinyl chloride system

for NRTL and UNIQUAC models, and for THF-methyl acetate for NRTL,UNIQUAC, WILSON, and their -HOC and -RK variations.

The NRTL binary parameters for water/2-ethylhexanol in the LLE-ASPENdatabank were incorrect and have been updated based on regression of

new data.

Binary parameters for water with ketones have been updated:

Name 1 Name 2 Alias 1 Alias 2 Models

METHYL-ACETATE Water C3H6O2-3 H2O NRTL, UNIQUAC, Wilson

DIETHYL-KETONE Water C5H10O-4 H2O NRTL, UNIQUAC

METHYL-N-PROPYL-KETONE Water C5H10O-2 H2O NRTL, UNIQUAC

DIISOPROPYL-KETONE Water C7H14O H2O NRTL, UNIQUAC

2-HEXANONE Water C6H12O-D3 H2O NRTL, UNIQUAC

2-HEPTANONE Water C7H14O-D2 H2O NRTL, UNIQUAC

2-OCTANONE Water C8H16O-E2 H2O NRTL, UNIQUAC

2-NONANONE Water C9H18O-E1 H2O NRTL, UNIQUAC

3-HEPTANONE Water C7H14O-E1 H2O NRTL, UNIQUAC

3-OCTANONE Water C8H16O-D2 H2O NRTL, UNIQUAC

3-NONANONE Water C9H18O-D3 H2O NRTL, UNIQUAC

4-HEPTANONE Water C7H14O-E2 H2O NRTL, UNIQUAC

5-NONANONE Water C9H18O-E2 H2O NRTL, UNIQUAC

DIISOBUTYL-KETONE Water C9H18O-D1 H2O NRTL, UNIQUAC

5-METHYL-2-HEXANONE Water C7H14O-D10

H2O NRTL, UNIQUAC

The new NISTV73 database was created. The NIST-TRC databank has

been updated based on the June 2010 NIST SOURCE data archive; over

4000 more compounds have been added.


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Physical Property ModelsNew property methods have been added based on Aspen HYSYS propertypackages: HYSGLYCO, HYSPR, HYSSRK. The HYSYS databank containing

parameters used in these methods has also been added. This is a verysignificant enhancement to Aspen Plus in that it brings the three mostcommonly used methods in Aspen HYSYS to the Aspen Plus productfamily. These methods provide additional industry-proven methods for oil

& gas and gas-processing applications.

New user routine PCHSLU for hydrocarbon solubility ofpseudocomponents. Hydrocarbon solubility is needed when the dirty water

approach to water handling is used. To use this subroutine, write a

subroutine that calculates the parameters of the Hydrocarbon Solubilitymodel from average boiling point, API gravity, specific gravity, and/oraverage molecular weight of the petroleum fraction, using the argument

list from Chapter 25 of Aspen Plus User Models, then specify User

Routine PCHSLU for Hydrocarbon Solubility in a petroleum propertymethod on the Components | Petro Characterization | Property

Methods form and use this method on the Components | PetroCharacterization | Generation form.

The Liquid Constant Liquid Molar Volume model has been enhanced to use

the General Pure Component Liquid Molar Volume model when parameters

are available for it and no molar volume VLCONS has been entered. Thismodel is used in the Solids Handling Property Method used for systemswhere the solid properties are most important. It should now provide

better liquid properties when VLCONS is not entered.

New option codes have been added to ENRTL-RK, ENRTL-SR, and NRTL-SAC for calculating the dielectric constant and density of water. For

STMNBS2, there is a new choice in the fugacity and enthalpy option code.The REFPROP property method has been updated to use the latest version(8.1c) from NIST.

New liquid thermal conductivity model based on the API procedure12A3.2-1 has been added. This is the current recommended API

procedure and should provide more accurate results for petroleum

fractions.

ChemistryIn Chemistry blocks you can now specify the equilibrium constants for

reactions based on a version of the van 't Hoff equation instead of the

expression which has been available in past versions. Additionally, there isnow a term for modeling the pressure dependence of the equilibrium

constant which can be used with either expression.

In Chemistry blocks you can now specify the reactive or inert components

instead of specifying reactions, and let the Aspen Physical Property

System use Gibbs energy minimization to compute the expected productsfrom among these components. With this option you do not specify any

reactions or equilibrium constants.


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The activity coefficient basis for ionic components is now specified withineach Chemistry block rather than at the global level. This basis can also

be specified on the first screen of the Electrolyte Wizard.

Prop-Set Properties

New Prop-Set properties ISENEX, ISENEXMX (isentropic exponent orisentropic coefficient) have been added.


Aspen Plus V7.3 can be installed and used at the same time as V7.2 and otherprevious versions of Aspen Plus.

This section describes the differences that you might encounter betweenAspen Plus V7.3 and Aspen Plus V7.2. In most cases, previous Aspen Plus

input files and backup files are completely compatible with Aspen Plus V7.3.

When you open a file from a previous version, Aspen Plus displays the

Upward Compatibility dialog box. If you select Maintain UpwardCompatibility for Features Listed Below then Aspen Plus ignores the newfeatures in all the areas mentioned on the dialog box (which may include new

pure component databanks, property methods, built-in parameters, ADA/PCS

procedures, calculated molecular weights obtained from formulas, andchecking of user-specified sequence, depending on the version of Aspen Plus

used to create the file).

Costing results from Exchanger Design & Rating or Economic Evaluation maychange from one version to the next due to updated cost data.

New features in other areas, as noted below, may still cause different results

in the new version. These changes may have greater impact in flowsheets

with loose tolerances due to convergence paths being different. AspenTechmakes every effort to avoid making changes that result in incompatibilities

with previous versions. The changes discussed in this section were necessary

to correct problems (such as wrong results), to implement new features, or toimprove ease-of-use.

The most important areas where you might encounter differences between

Aspen Plus V7.3 and earlier versions are:

Unit Operation Models

Convergence.

Pressure relief.

Workflow and usability.

Solids.Physical properties.

Databanks.

Retired features.

Features to be retired.

Updates to previous compatibility notes.


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Unit Operation ModelsModels exported from versions of Aspen Custom Modeler before 2004.1are now excluded from Aspen Plus. These models must be re-exportedfrom ACM and reinstalled per the documentation before they can be used.

As always, if you experience problems using ACM Models exported froman earlier release, try re-exporting them from the latest version.

The pressure drop calculation for flow in pipes formerly used an

approximation for calculating accelerational pressure drop. This

approximation could be significantly low for flow near sonic velocity, andoff to a smaller degree in other conditions. Now it uses a rigorouscalculation which gives correct results. This calculation is separate from

the two-phase frictional pressure drop calculation and applies regardlessof the correlation selected.

Analyzer now uses a TP flash instead of PQ flash in most cases. This

allows it to converge robustly in cases with zero flow. This causes a small

change in results, smaller than the flash tolerance. In V7.2, this changewas made only for the EO formulation, resulting in differences between

SM and EO results of the same magnitude as this change. Now both SM

and EO use the TP flash.

Some rigorous HeatX blocks using Design mode (especially ones with very

large duties requiring multiple series and parallel shells) may showsignificant differences due to the default iteration limit for design cases

being increased in Exchanger Design & Rating (EDR). This allows EDR to

find better designs it might have missed before. Also, the warning issuedwhen design cases reach the iteration limit is now more obvious.

When simulating a kettle reboiler of a distillation column rigorously using

EDR, now this will always be a K shell, the appropriate type. In previous

versions sometimes an X shell or E shell could be used instead. Theresults will change in these cases.

Enhanced input data checking for Exchanger Design & Rating (EDR) AirCooled Exchanger was developed to examine if input data sets containinconsistent, inappropriate, or missing data. It may cause cases to fail inAspen Plus when they previously ran in earlier versions, with no indication

of the problem. When the case is opened in the EDR data browser fromAspen Plus, the input items causing the problem will be highlighted, with ared background for incorrect inputs, or a blue-green background for

required inputs which are missing. When incorrect inputs are deleted, adefault value will often appear, which can be accepted, or revised asappropriate.

Convergence

When using a Component Group to specify the components to be convergedin a tear stream, if there are components not defined in the component group

with non-zero flows of component attributes (such as solids with particle sizedistributions, nonconventional components, and polymers) or if substreamsnot defined in the component group have phase attributes, results in V7.3

may be different than previous versions. The difference is due to earlier

versions always attempting to converge the component or phase attributes,even when the components are excluded by not being in the componentgroup.


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Pressure ReliefThe Darcy model, which is equivalent to the DIERS HomogeneousEquilibrium flow model, is now the default frictional pressure dropcorrelation in Pres-Relief for all orientations. Beggs-Brill remains the

default method for Pipe and Pipeline. This may result in different pressuredrop calculations for Pres-Relief blocks where two-phase flow exists andthe methods on the Convergence | Methods sheet were not specified.To match results from previous versions, specify Beggs-Brill for all

orientations where a method was not previously specified.

When Darcy was specified for one of the frictional pressure dropcorrelations in Pres-Relief, previous versions also allowed the

corresponding liquid holdup correlation to be specified, even though Darcydoes not use the liquid holdup correlation. Now this field is disabled whenDarcy is selected.

Workflow and UsabilitySome shortcut keys and mouse actions used for navigating around the

flowsheet have been changed or added for consistency with HYSYS:

o Shift+Page Up, Shift+Page Down, and Home now do Zoom In, ZoomOut, and Zoom Full.

o

Page Up, Page Down, and the Mouse wheel now do Zoom In/Out by

small increments.

o Shift + arrow keys now scrolls by big steps (previously done by PageUp, Page Down, Home, and End).

o Ctrl + mouse wheel now does vertical scroll (previously done by

mouse wheel without Ctrl).

The Pro/II file converter has been enhanced, and a number of conversion

issues have been fixed. You will observe the following changes relative to

Pro/II conversions with previous versions:o

A Pro/II HX with a utility on one side is now converted to an AspenPlus Heater block and an Aspen Plus Utility.

o

Multiple Pro/II components with the same key can now be properly

converted. All Pro/II components in the PURE24, SOLIDS, INORGANIC,AQUEOUS, and NIST-TRC databanks are now converted.

o Several problems in converting units of measure and the flow basis of

streams have been fixed.

o The default physical property set is now converted correctly in someinstances where it was formerly converted incorrectly.

o Reaction data is now transferred for all supported reactors, and

pressure drop, volume, liquid phase, and product stream connectionspecifications are properly converted.

o When converting a Pro/II HX, operation variables such as temperatureand pressure drop are properly converted, including zero pressure

drop when no specification is given.

o When converting a Pro/II LNGHX, the duty variable is now properlyconverted.


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o When converting a Pro/II FLASH, zero pressure drop and duty areproperly set when these values are not specified, and variable

UPPERDEW is converted.

o When converting a Pro/II SPLITTER, split fraction is now properlyconverted and a global specification is turned into an Aspen Plus

Design-Spec.

o When converting a Pro/II STCALC, split fraction is now properlyconverted.

o When converting a Pro/II PIPE, nominal pipe size is now properlyconverted.

o

Multiple feeds to a Pro/II VALVE are now supported by inserting an

Aspen Plus Mixer block.

The Setup | Report Options form in a Hierarchy no longer displays the

Flowsheet sheet. This sheet contains some rarely-used options to

completely suppress certain items from the report, and these options didnot function correctly within a Hierarchy. An attempt to fix this in V7.2caused the entire Report Options form to not appear within a Hierarchy;

this has been corrected.

Solids

Mixture entropy for the CISOLID substream (and for inert solids in the MIXED

substream) is now calculated in the same way as entropies are calculated fora mixture of salts in the MIXED substream, assuming they are pure

condensed species rather than solid solutions. This method is a simple mole-average of the entropies for the individual solids/salts. Formerly, a term x ln x

was used for CISOLIDs, representing the formation of a solid solution. Thismay show a large change in the calculated entropy value when multiple solid

components exist, but should not generally affect simulation results, since

models such as COMPR which depend on entropy are not normally fed withsolids.

Physical PropertiesIn V7.2, when using the new symmetric reference state for the activity

coefficients of ions, if no equilibrium constants were available for reactionsspecified in Chemistry blocks, the Aspen Physical Property System

calculated equilibrium constants incorrectly. This has been corrected sothat these equilibrium constants are not calculated incorrectly; instead,

when using the symmetric reference state, the equilibrium constants arenow required (either directly input, or calculated via data regression).

In the Components section of the Report file, the Name or Alias and

Report Names columns have been replaced by a single Name column.This makes this report consistent with the Components | Specifications| Selection sheet in the user interface, where ID, Type, Name, and

Alias are shown.


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Calculations for sonic velocity (SONVEL and SONVELMX Prop-Setproperties) have been corrected for phase L when there are two liquid

phases. In addition, there is a new warning printed when calculating CV,CVMX, CPCV, CPCVMX, SONVEL, SONVELMX, ISENEX, and ISENEXMXwhen the liquid volume model is not pressure-dependent (as is the casewith the Rackett model). With these models, the dV/dP contribution for CV

is not calculated because the liquid volume model always provides a zero.Another model such as COSTALD or an equation-of-state should be usedto calculate these properties.

Calculations for the Prop-Set properties that calculate apparent flow rates

and fractions (FAPP, TFAPP, TWAPP, WAPP, WXAPP, XAPP and their "2"variants) now strictly obey the phase qualifier. This results in differences

relative to past versions when solid salts exist in the stream. Previously,

these solid salts were considered in the liquid phase calculations, as isdone in the stream calculations for the apparent approach. These

properties can now be calculated for all phases, including Total and Vapor;vapor returns just the true concentration since we do not allow ions in the

vapor. Total includes Vapor; when there is no vapor, it should reproduce

the values calculated for Liquid in previous versions.Parameters for vapor pressure for heating fluid DOW-Q have been

corrected in PURE25 and earlier versions of the pure component databank.In previous versions the vapor pressure was far lower than it should be.

When no molar volume VLCONS is entered for the Liquid Constant LiquidMolar Volume, it now uses the General Pure Component Liquid Molar

Volume model instead of the constant value of 1. This model is used in the

Solids Handling Property Method used for systems where the solidproperties are most important. You will see different (generally better)results when using this model and VLCONS is not entered for some liquid

components. Also, in cases where neither VLCONS nor the parameters for

the General model (usually TC, PC, and RKTZRA for the Rackett equation)are available, you will encounter errors about the missing data. Enter a

reasonable value for VLCONS or for parameters for the General model

when this happens. You can enter 1 for VLCONS to restore the resultsfrom previous versions.

In past versions, some models using the dirty-water method in sequential-

modular calculations incorrectly used the free-water phase entropy andvolume. The equation-oriented calculations used the correct dirty-watercalculation. This problem is now fixed. You may observe small differences

from previous versions in these properties in dirty-water sequential-modular calculations.

The evaluation feature of the standard Data Regression (Properties | Regression | Input | Setup sheet, option Evaluation) has been

improved for VLE with 3 or more components and for LLE. Now a flash isperformed to ensure results will be consistent with results obtained by

other methods. The results of this evaluation will be different than in pastversions for these cases, but they should be more accurate.


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Steam table method STMNBS2 was modified in two ways which may leadto different results. The results of the previous version can be reproduced

by setting the value of option code 2 of STMNBS2 to 1 when it is calleddirectly, and to 0 when it is used as the free-water method in conjunctionwith an equation of state, such as SRK.

o A new option for option code 2 (value = 2) was added, which performs

the same rigorous fugacity calculations from Gibbs energy andcorrected enthalpy departure as value 1, but uses the Aspen Plus rootsearch method instead of the STMNBS2 root search method. This is

more robust and less likely to lead to flash failures where a real root

cannot be found.

o

A bug was fixed in the handling of option codes when STMNBS2 is

used as the free-water method for equations of state such as SRK.

Previously, option code 2 was ignored in this case and the originalfugacity and enthalpy calculations of STMNBS2 were always used

(equivalent to value 0).

DatabanksFive compounds in the NIST-TRC databank were updated with new namesfor consistency with compounds added to or already existing in thePURE25 databank in APV73:

Alias New Name in NIST-TRC

Old Name in NIST-TRC CAS Number

F3P TRIFLUOROPHOSPHINE PHOSPHORUS-TRIFLUORIDE 7783-55-3

C3H8N2O N,N*-DIMETHYLUREA 1,3-DIMETHYL-UREA 96-31-1

C4H3F7O-N1 C4H3F7O-N1 HEPTAFLUOROPROPYL-METHYL-ETHER

375-03-1

C9H8O4-N2 C9H8O4-N2 MONOMETHYL-TEREPHTHALATE 1679-64-7

H2-PARA(was H2-N1)

HYDROGEN-PARA HYDROGEN,-DIATOMIC,-PARA

The NRTL binary parameters for water/2-ethylhexanol in the LLE-ASPEN

databank were incorrect and have been updated based on regression of

new data. You may see different results in problems using NRTL-basedmethods with these components.

The NRTL, Wilson, and UNIQUAC binary parameters for methyl-

acetate/water (for VLE and LLE) were incorrect and have been updatedbased on regression of new data. You may see different results inproblems using methods based on these models with these components.

Binary parameters for a number of ketone/water systems were poor or

missing and have been updated or added based on regressions of new

data. You may see different results in problems involving ketones andwater using methods that use binary parameters.


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Retired FeaturesThe Case Study form is no longer shown in the Aspen Plus user interface.Case Study is still available through input files and the Add-Input form,

and files from previous versions and input files containing Case Study

blocks will have them appear in Add-Input. The Cases feature of theSensitivity block is recommended as a more usable version of thisfeature through the user interface.

Databanks PURE856, PURE93, PURE10, and AQU92 are no longerdelivered. These are superseded by AQUEOUS and later versions of PUREwhich include more recent data from DIPPR and other sources.

o Each of these databanks is from a version of Aspen Plus more than ten

years old. They were intended only for users who require completecompatibility with results from previous versions. Because most users

have now updated their simulations to newer database versions, these

old versions are being dropped to reduce the size of the databasedelivered with each installation.

o It is possible to use the Aspen Properties Enterprise Database to

preserve copies of these databanks if you still need to use them. Acopy of the enterprise database from an earlier version (2006 through

V7.2) which still contains these databanks is required; this can bedownloaded from AspenTech Support. See Maintaining Access to

Retired Databanks for details.

o

When you open files which reference these databanks, the UpwardCompatibility dialog box will appear. An option at the bottom of thedialog box lets you choose to either Upgrade retired databanks or

Keep retired databanks. Choosing upgrade replaces PURE856,

PURE93, and PURE10 with PURE25, and replaces AQU92 withAQUEOUS. The keep option requires a database containing the retired

databanks, and is not available when using the legacy databank

system.

The RateFrac-to-Aspen Rate-Based Distillation converter has been retired.If you are upgrading from an older version and you still have RateFrac

blocks in your simulations, you should use the converter in the old versionto move to Aspen Rate-Based Distillation before you upgrade.

Flowsheet Export from Aspen Custom Modeler to Aspen Plus. This

capability is superseded by the more flexible Model Export. You can re-

export the original Aspen Custom Modeler files as model packages to keepusing them. See Adding ACM Models to the Aspen Plus Model Library forinformation.


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Features to be RetiredCompaq Visual Fortran 6.6 runtime libraries. These libraries have beendelivered for several versions while Aspen Plus has been built with Intel

Fortran in order to support user Fortran models built with the older

compiler, but this is the last version in which they will be included. Infuture versions, in order to run Fortran compiled by the Compaq compileron a computer which does not have this compiler installed, you will need

to install these libraries separately. See the documentation for thecompiler.

OLE paste links (the live, updating link to a data value in Aspen Plus

created when it is copied and pasted into an application which can support

such links, such as Microsoft Excel) will no longer be supported in the nextversion. It will still be possible to copy and paste data, but without the live

link. This mechanism has been the source of problems, including slow

copy and paste of large amounts of data. There are other techniques (OLE

automation and Aspen Simulation Workbook) to link models to Excel andother applications, and these techniques will remain available.

In the next version, it will no longer be possible to create custom formsfor custom models, nor use previously created custom forms.

In the next version, the Feedbl unit operation will be removed from theModel Library. This model was used with RT-Opt version 10.0 to create

material feed streams. It is not necessary in Aspen Plus, but was providedto maintain compatibility.

Export of the flowsheet drawing as a DXF file will be removed in the nextversion.

PFD mode (which lets you make an alternate version of the process

flowsheet to depict equipment in the plant not modeled in the simulation)will be removed in a future version.

Updates to Previous Compatibility Notes

In version V7.0, changes were made to the Analyzer block to support

CISOLID substreams. It was previously reported that this removed theDELTA_ENTH variable and added the DUTY variable. In addition to this

change, the DELTA_MVOL variable was removed. There is no exact equivalentto these removed variables in the new model, but since they were the

differences between analyzed and stream conditions, their values can be

generated by comparing the ANLZR_* and inlet stream variables.


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Aspen Plus version V7.3 includes a significant number of software fixes thatfurther improve the product.

Because of the number of defects fixed is large, the sections below contain a

select subset of all defect fixes. If you are interested in a particular defectthat you do not see listed here or want to see a more comprehensive list,contact your Support representative.

The sections below summarize the fixed defects, highlighting particular areasof interest. In addition, see the What's Fixed section for Aspen Properties fora list of fixed defects related to physical properties and databanks.

Fixed Defects

ID Issue Description Issue Resolution

CQ00305236 Crusher selection & breakagefunction questions The value of 0.85 was alwaysfor the selection function whenthe Ratio of Feed Size to OutletDiameter was 1.0 or greater.Now if selection function isspecified, the value fromselection function will be used.

CQ00405494 Wrong dKdT in EO engine Incorrect temperaturederivatives could be calculatedfor the apparent compositionapproach, leading toconvergence failures. This isnow fixed.

CQ00408230 Aspen Plus file crashes Fixed crash that could occurwhen using dirty-water option

CQ00413778 Thermosyphon reboiler duty is notmatching with RadFrac blockreboiler duty

When reboiler duty is specifiedfor a thermosiphon reboiler inRadFrac, the reboiler dutyreported in RadFrac might bewrong. In V7.3 it should matchthe value returned by EDR (orbe close, when differentproperty calculation methodscause there to be a difference).

CQ00421454 Permission issue using EDR withAspen Plus

Prompt user for where to savethe PSF file if the folder is notwritable. Add extension to make

filename unique if there isalready a read-only file with thisname.

CQ00405818 No copy and paste buttons inUtility object manager

Added Copy/Paste buttons.

CQ00407120 Radfrac: Liquid to and Vapor fromtemperatures missing in xml file!

Report the liquid-to and vapor-from temperatures


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ID Issue Description Issue Resolution

CQ00407204 Unable to specify stream inPetroFrac

When the design spec type wasReid vapor pressure (dry basis),the "Feed/Product Streams" tabwas incorrectly disabled. Fixedin V7.3.

CQ00407665 Improvements to help menu Added two items "Support LiveChat" and "Join the Aspen PlusLinked-In Group" to help menu.

CQ00407779 Failure in the summary file toolkitand the tool HTXINT with userproperties

Fixed a problem which couldcause Summary File Toolkit (orprograms which use it, such asHTXINT) to crash when readingcertain files containing propertysets.

CQ00407783and others

Incorrect or missing help Fixed several missing or wrongcontext-sensitive help links andprompts.

CQ00410793 NQ curve reports wrong rebolierduty when using thermosiphon The condenser and reboiler dutyduring the NQ-curvescalculation was incorrect for acolumn with a thermosiphonreboiler. Fixed in V7.3.

CQ00410843 Wrong X-axis label for RPlugresidence time plot

Fixed the default label.

CQ00428025 Molecular weight of NH3 withREFPROP

When the REFPROP model isused, sometimes there is a tiny

but noticeable differencebetween molecular weight fromstream report and from prop-set. This is now fixed.

CQ00407000 Icon for comments button whencomments are present looks likeplot wizard button

Fixed icon

CQ00416089 Need Icon for Venturi Added Icon for Venturi in Mixerblock


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The OLI Interface

Product Description

Aspen OLI™ Interface is a layered product that lets you make full use of theOLI Engine, Chemistry Wizard, and Chemistry Generator products from OLISystems Inc. within the Aspen Engineering Suite environment. The Aspen OLI

Interface enables process engineers to quickly and reliably perform process

modeling and analysis of aqueous electrolyte systems. Together with AspenPlus®-based solids and electrolytes modeling technology, Aspen OLI Interface

provides the chemical process industries with comprehensive capability tomodel aqueous electrolyte systems over the complete concentration range,

including most of the elements in the periodic table. The OLI property methodprovides accurate results for the thermodynamic and transport properties of

aqueous mixtures and associated immiscible organic mixtures. Aspen OLI

Interface refers to the interface that enables you to use OLI products andcapabilities within the Aspen Engineering Suite environment. This manual

provides instructions on how to use the combined features of the Aspen OLIInterface and the software you license separately from OLI Systems Inc.These combined products are referred to as Aspen OLI.

New Features and Enhancements in V7.3In this release, the interface is updated to use the latest OLI Engine: version

8.2.


There are no compatibility notes for this release.


There are no fixed issues listed for this release.


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Aspen Properties

Product DescriptionAspen Properties® is AspenTech's physical property calculation and analysis

tool. You can use Aspen Properties to prepare a complete property package torepresent an industrial process for use with Aspen Plus, Aspen Plus Dynamics

(Aspen Dynamics), Aspen Custom Modeler, and Aspen HYSYS PetroleumRefining (RefSYS), and Aspen Exchanger Design and Rating (HTFS+). Batch

Process Developer (Batch Plus) also uses Aspen Properties to model non-ideal

solutions for vapor emissions calculations. You can use Aspen Properties toestimate a wide range of properties from molecular structure, regress

parameters from laboratory data, and analyze the behavior of chemical andpetroleum systems.

New Features and Enhancements in V7.3This release includes the following new features and enhancements:

NIST TDE with Binary Data.

Data Regression Enhancements.

Databank Updates.

Physical Property Models.

Chemistry.

Prop-Set Properties.

Workflow and Usability.

NIST TDE with Binary DataThe NIST TDE feature has been significantly enhanced to includeexperimental data for binary mixtures. The available data include VLE,

LLE, heat of mixing, density, viscosity, thermal conductivity, surface

tension, and others. These data can be used to perform data regressionusing the existing Data Regression capability. These data constitutevirtually all available experimental binary data known to date. The

retrieved data can be viewed, plotted and saved to forms for further use

in data regression.

For binary VLE data, TDE includes the capability to perform

thermodynamic consistency tests. The tests include a quantitativemeasure of the data quality (quality factor), which will be useful in helping

you select appropriate data sets to use.

This feature also includes a new workflow that allows you to perform dataregression or evaluation directly, thus enhancing ease of use.

The NIST TDE engine has been updated to version 5.0. The NIST-TRC

databank has been updated based on the June 2010 NIST data andversion 5.0 of TDE; over 4000 more compounds have been added.


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Data Regression EnhancementsThe evaluation feature of the standard Data Regression (Properties | Regression | Input | Setup sheet, option Evaluation) has beenimproved for VLE with 3 or more components and for LLE. Now a flash is

performed to ensure results will be consistent with results obtained byother methods.

Experimental binary data available in TDE can be used to populate the

Data form directly (Properties | Data | Mixture | Data sheet). When

you define a Data set containing two components, you can retrieve theexperimental data from TDE instead of entering them manually.

Databank UpdatesNew APV73 database was created, containing new PURE25 databankbased on the January 2010 release of the DIPPR database. This

databank is similar to the PURE24 databank, but many parameters for a

large number of components have been updated, and 42 componentshave been added.


C22H44-D1 1-DOCOSENE 1599-67-3

C24H48-D1 1-TETRACOSENE 10192-32-2

C26H52-N10 1-HEXACOSENE 18835-33-1

C28H56-N2 1-OCTACOSENE 18835-34-2

C12H16-D4 5-O-TOLYL-2-PENTENE 6047-69-4

C7H12-N3 BICYCLO-2-2-1-HEPTANE 279-23-2

C8H14-N3 BICYCLO-2-2-2-OCTANE 280-33-1

C18H24-N6 TRIAMANTANE 13349-10-5

C22H28-D1 TETRAMANTANE 27745-90-0

C10H10O-D1 3,5-DIMETHYLBENZOFURAN 10410-35-2

C14H14O4 DIALLYL-PHTHALATE 131-17-9

C19H38O2-N1 METHYL-STEARATE 112-61-8

C15H30O2-N1 METHYL-MYRISTATE 124-10-7

C17H34O2-N1 METHYL-PALMITATE 112-39-0

C10H12O2-N5 ETHYL-PHENYLETHANOATE 101-97-3

C8H18N2O2-D1 4-2-2-AMINOETHOXYETHYLMORPHOLINE 20207-13-0

C8H17NO3 BETA-MORPHOLINOETHOXYETHANOL 3603-45-0

C10H9N-N5 8-METHYLQUINOLINE 611-32-5

C4H9NO-N1 2-BUTANONE-OXIME 96-29-7

C6H14S-N1 ISOPROPYL-SULFIDE 625-80-9

C6H8S 2,3-DIMETHYLTHIOPHENE 632-16-6

C6H15CLO3SI 3-CHLOROPROPYL-TRIMETHOXY-SILANE 2530-87-2

C9H20O5SI GLYCIDOXYPROPYLTRIMETHOXYSILANE 2530-83-8

CLF3 CHLORINE-TRIFLUORIDE 7790-91-2

C6H15O3P TRIETHYL-ESTER-PHOSPHOROUS-ACID 122-52-1

F3P PHOSPHORUS-TRIFLUORIDE 7783-55-3


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C8H4CL2O2-D1 TEREPHTHALOYL-CHLORIDE 100-20-9

C3H8N2O 1,3-DIMETHYL-UREA 96-31-1

C2H6N2O-N1 MONOMETHYLUREA 598-50-5

C4H12N2O-D1 BIS-2-AMINOETHYL-ETHER 2752-17-2

C6H14N2O-D2 4-2-AMINOETHYL-MORPHOLINE 2038-03-1

C6H13NO-N1 N-ETHYLMORPHOLINE 100-74-3

C11H16O2-D1 PG-ALPHA-METHOXYBENZYL-ETHER 871518-84-2

C11H16O2-D2 2-ALPHA-METHOXYBENZYL-1-PROPANOL 857237-25-3

C4H8O2S-D1 METHYL-3-MERCAPTOPROPIONATE 2935-90-2

C4H3F7O-N1 HEPTAFLUOROPROPYL-METHYL-ETHER 375-03-1

C9H8O4-N2 MONOMETHYL-TEREPHTHALATE 1679-64-7

C7H12O3-D1 ETHYL-LEVULINATE 539-88-8

C10H10MG BIS(CYCLOPENTADIENYL)MAGNESIUM 1284-72-6

C40H62O19 SUCROSE-ACETATE-ISOBUTYRATE 126-13-6

C5H10O-N1 2-METHYLOXOLANE 96-47-9

SIH3CL MONO-CHLOROSILANE 13465-78-6

APV73 also contains the new BIODIESEL databank containing 461components including triglycerides, diglycerides, and monoglycerides

which appear in biodiesel production processes.

Binary parameters have been added for the water-vinyl chloride systemfor NRTL and UNIQUAC models, and for THF-methyl acetate for NRTL,

UNIQUAC, WILSON, and their -HOC and -RK variations.

The NRTL binary parameters for water/2-ethylhexanol in the LLE-ASPENdatabank were incorrect and have been updated based on regression of

new data.

Binary parameters for water with ketones have been upda

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