GettingStarted Petroleum

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Modeling PetroleumProcesses

S T E A D Y S T A T E S I M U L A T I O N

10

AspenTec

AspenPlus 7

Vers

ion

GETTING STARTED

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COP YRIG H T 19811999 Aspen Techn ology, In c.ALL RIG HTS RE SE RVED

The flows heet g ra phics an d plot component s of Aspen P lus w ere developed by MY-Tech, Inc.

Aspen Aerotran,Aspen Pinch

,ADVENT

,Aspen B -J AC

,Aspen Custom Modeler

,Aspen

Dynamics,Aspen H etra n

,Aspen P lus

, Aspen Tech

, B -J AC

,BioPr ocess Simula tor (B P S)

,

DynaP lus

, ModelManager

, Plantelligence

, the P lan telligence logo

, Polymers Plus, Properties

Plus, S P E E D U P

, an d the a spen leaf logo

a re either registered tra demarks, or tra demarks of Aspen

Technology, I nc., in th e U nited St a tes a nd/or other countries.

BATCHFRACa nd R ATEF RAC

a re tra demarks of Koch E ngineering Company, Inc.

Activat or is a tra demark of Softw ar e Security, Inc.

Rainbow SentinelSuperPro

is a tr a dema rk of Rainbow Technologies, Inc.

la n License Man ager is a tra demark of lan C omputer G roup, Inc., Mounta in View , Ca lifornia , U SA.

Microsoft Windows, Window s NT, Windows 95 a nd Windows 98 are either registered t ra dema rks ortr a dema rks of Microsoft Corpora tion in the U nited S ta tes a nd/or other countries.

All other bra nd a nd product n am es are t ra demarks or registered tra demarks of their respectivecompanies.

The License Mana ger portion of this product is ba sed on:

la n License Mana ger

1989-1997 lan Computer G roup, Inc.All right s r eserved

U se of Aspen P lus a nd This Ma nua l

This ma nua l is intended a s a g uide to using Aspen Plus process modeling softw a re. This documenta tion conta ins

AspenTech proprietar y a nd confidential informat ion and ma y not be disclosed, used, or copied wit hout t he prior

consent of AspenTech or a s set forth in the a pplicable license agr eement. U sers a re solely responsible for t he

proper use of Aspen P lus a nd t he application of the results obta ined.

Although AspenTech has tested the software and reviewed the documentation, the sole warranty for Aspen Plus

ma y be found in the a pplica ble license a greement betw een AspenTech a nd t he user. ASPENTECH MAKES NO

WARRANTY OR REPRESENTATION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THIS

DOCUMENTATION, ITS QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR A

PARTICULAR PURPOSE.

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Modeling P et roleum P rocesses iiVersion 10.1-0

Contents

About This Manual

Modeling P etroleum P rocesses wit h Aspen P lus ............................................................v

Sessions in this B ook .......................................................................................................vi

U sing B ackup Files..........................................................................................................vi

For More Informa tion .....................................................................................................vii

Technical Support ......................................................................................................... viii

1 Blending Crude and Petroleum Fractions

P etroleum P rocess Flowsheet ........................................................................................1-2

St ar ting Aspen P lus.......................................................................................................1-4

Specifying Title an d G lobal Options .............................................................................1-5

Specifyin g Component s ................. .................. .................. .................. .................. ........1-7

En tering Assa y Da ta .....................................................................................................1-9

B lendin g th e Oils ................ .................. ................... .................. .................. ................ 1-16

G enerat ing P seudocomponents ...................................................................................1-18

Runn ing the Simu lat ion ..............................................................................................1-20

Examining Results.......................................................................................................1-21

P lotting Dist illat ion Cur ves ........................................................................................1-23

Creating a Backup File.................................................................................................1-29Exit ing Aspen P lus ................ ................... .................. .................. .................. .............. 1-30

2 Adding a Preflash Tower

P reflash Tower Flowsh eet .............................................................................................2-2

St ar ting Aspen P lus.......................................................................................................2-3

Opening a n Exist ing Run ..............................................................................................2-4

Sa ving a Run Un der a New Na me................................................................................2-5

Ch a nging the Run Type ................................................................................................2-6

Selecting a Dist illat ion Model .......................................................................................2-7

Defining t he G ra phical Simu lat ion Flow sheet ............................................................2-8

Specifying Properties...................................................................................................2-11

En tering St ream Da ta .................................................................................................2-13

Specifying the P reflash U nit .......................................................................................2-15

Modifying Pseudocomponents.....................................................................................2-20

Runn ing the Simu lat ion ..............................................................................................2-22

Exa mining Sim ulat ion Results ...................................................................................2-23

Exit ing Aspen P lus ................ ................... .................. .................. .................. .............. 2-29

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iv Modeling P et roleum P rocesseVersion 10.1-

3 Adding an Atmospheric Crude Distillation Unit

Atm ospheric Cru de D istilla tion U nit Flowsh eet .........................................................3-2

St a rting Aspen P lus.......................................................................................................3-4

Opening a n Exist ing Run ..............................................................................................3-5

Sa ving a Run Un der a New Na me................................................................................3-6Adding t he Cru de Dist illat ion U nit t o the Flowsheet .................................................3-7

Specifying Steam Feeds to the Tower...........................................................................3-9

Specifyin g th e Atmospheric Tower ................. .................. .................. .................. ......3-11

Runn ing the Simu lat ion ..............................................................................................3-24

Exa mining Simu lat ion Results ...................................................................................3-25

Exa mining the P roduct St ream s.................................................................................3-27

P lotting Dist illat ion Cur ves ........................................................................................3-29

Exit ing Aspen P lus ................ .................. ................... .................. .................. .............. 3-32

4 Adding A Vacuum Unit

Vacuum U nit Flowsheet ................................................................................................4-2St a rting Aspen P lus.......................................................................................................4-4

Opening a n Exist ing Run ..............................................................................................4-5

Sa ving a Run Un der a New Na me................................................................................4-6

Adding a Vacuum Tower to the Flowsheet...................................................................4-7

Specifying the St eam Feed ............................................................................................4-9

Specifying the Vacuum Un it .......................................................................................4-10

Runn ing the Simu lat ion ..............................................................................................4-16

Exa mining Simu lat ion Results ...................................................................................4-17

P lotting Dist illat ion Cur ves ...........................................