Innovative Silesian Cluster for Clean Coal Technologies FUTURE EU ENERGY MIX– WILL COAL PLAY AN IMPORTANT ROLE ? Gliwice, 29th of May 2006 Super critical

Innovative Silesian Cluster for Clean Coal Technologies

FUTURE EU ENERGY MIX– WILL COAL PLAY AN IMPORTANT ROLE ?Gliwice, 29th of May 2006

Super critical and oxy-combustion for coal power generation– demonstration projects

Wojciech Nowak, Czestochowa University of Technology, speakerTadeusz Chmielniak, Andrzej Ziębik – Silesian University of Technology

Roman Walkowiak – BOT Elektrownia Turow S.A



MOTIVATION

Reliance on coal is a critical factor that forces Europe towards efficient and clean combustion technologies,

For countries like Poland, that have no other choice but coal, development of a more efficient fossil fuel power plant technology is currently the only economically viable option to reduce the quantities of CO2,

Lignite constitutes about ¼ of Poland’s fossil fuel resources and is the least expensive energy source.

Once-through CFB supercritical boiler appears to be one of the best solutions for lignite.



Supercritical CFB Boiler is a Promising Perspective Towards CO2 Abatement (280 bar/600°C/620°C , lignite)

General objectives for collaborative action:

move forward from the existing CFB technology to supercritical once-through advanced boilers,

build a demonstration unit 450 MWel (280 bar/600°C/620°C , lignite),

operate and test the unit in order to make this technology a commercially viable option for Europe, especially in countries with substantial lignite deposits,

integration of biofuel technologies.

OBJECTIVE



TUROW AND PARTNERS - VALUBLE ASSET FOR ZERO EMISSION FOSSIL FUEL POWER PLANT TECHNOLOGY

COMPLETE MODERNIZATION OF SIX POWER UNITS (Turow is now the biggest power plant in CFB technology based on lignite),

UNIQUE OPERATIONAL EXPERIENCE,

ACIVE PARTICIPATION IN NATIONAL AND EUROPEAN RESEARCH PROJECTS (CFB Combustors – Processes in large-scale circulating fluidized bed combustors, UPSWING – Unification of power plant and solid waste incineration, FBCOBIOW – Safe co-combustion of biomass and biowaste in FB plants),

PRESTIGOUS AWARDS IN THE FIELD OF ENVIRONMENT PROTECTION.

EXPERIENCE



A UNIQUE OPPORTUNITY FOR A DEMONSTRATON PROJECT

There is enough lignite in a near-by coal mine for another power unit (both companies belong to the same capital group „BOT Gornictwo i Energetyka” – the biggest power supplier in Poland),

Construction of a new power unit is the main strategic goal of Turow power plant,

The company has developed organizational capacity to run big investment projects,

Turow would be one of the best reference sites for clean coal technologies, not only for the new member countries. Poland, like many other states in Europe, has to rely on coal,

Commissioning and test runs of a new power unit are foreseen around 2012,

Knowledge gained from the project will be a valuable input on a European scale for new fully commercial applications of even more efficient units, supposedly with oxy-fuel and CO2 capture technologies.



COLLABORATIVE ACTION FOR AN ADVANCED CFB UNIT DEMONSTRATION PROJECT IN TUROW

The project is supposed to be run by leading industrial and scientific organizations in the European power sector:

Foster Wheeler Energia Oy,Siemens,VTT Process,BOT GiE,BOT Elektrownia Turow S.A.,Instytut Energetyki,Politechnika Częstochowska, Politechnika Śląska,Energoprojekt Katowice,open call for another partners.

POTENTIAL PARTNERS



CO

NV

EN

TIO

NA

L C

OM

BU

ST

ION

OX

YG

EN

-EN

RIC

HE

D

CO

MB

US

TIO

N

air

coal

flue gas~15% CO2

flue gas~98% CO2

coal

air or CO2

air

Oxygen-Enriched Combustion: the process where the oxygen concentration in the inlet gas mixture (O2+N2, O2+N2+CO2, O2+CO2) exceeds 21%;Results: higher concentration of CO2 in the flue gas.

Circulating Fluidized Bed Oxy-Combustion for CO2 Abatement – demonstration project



MOTIVATION



CFB power plant working with O2 instead of air is a more viable option, particularly in comparison with PC systems for CO2 capture due to the recirculation of solids which could be cooled down before their return to the bed and consequently the control of the temperature could be achieved more effectively

PC and CFB boilerswith flue gas recirculation

Mainly for PCsProblems: SO2, NOX, PM, etc.

CFB boilers with higherrecirculation of solids

CFB – to avoid problems in PCsProblems: erosion

Flyash

Flue gaswith

high CO2 level

Flyash

Flue gas withhigh CO2 level

Flu

e gas recircu

lation

Recircu

lation

of so

lids

OBJECTIVE



To better integrate the processes, thereby reducing overall energy consumption and investment costs

•To establish a 50 MWe CFB Oxy-Combustion demonstration plants•To modernise excisiting PC power plants

More specifically: The CFB boiler has to be developed and optimised for this concept

•Combustion chemistry and kinetics to provide design and scale-up data •Verification of developed flue gas cleaning equipment•Material selection for new flue gas environment •The long term operational properties at large scale, such as slagging, fouling and corrosion•Finding new integration possibilities within power plants, especially if a new type of ASU is developed•Oxy-fuel combustion, performance and design basis•Heat transfer and temperature profiles•Effects on bed material, particle size distribution •Performance vs. criteria in integrated system•Sulphur – absorption mechanisms and rates in O2/CO2 environment

•NOx, CO2 and other emissions

Scientific and Technical Approach



Process integration

CFB STEAMCYCLE

CO2 sequestrationpossible conceptions:chemical absorptionphysical absorptionmembrane techniquescryogenic separation

ASU

INTEGRATION



POTENTIAL PARTNERS

BOT Elektrownia Turow Poland

Technische Universität Hamburg-Harburg

Germany

Foster Wheeler Energia OY

Finland

Instituto Nacional de Engenharia e Tecnologia Industrial - INETI

Portugal

Czestochowa University of Technology

Silesian Universityof Technology

Poland

VTT Process Finland

Universitá degli Studi di Napoli "Federico II"

Italy

Roadmap/OxyCFB development

Foster Wheeler OXYCFB Concept

-Design 500 MWe

PHASE 1:OXYCFB Process study OXYCFB power plantCost studyMarket study

2004

Private R&D

Demo 2 OXYCFB OTU Unit-250 MWe

OXYCFB Demo 1

-20 – 50 MWe-O2 (21 – 35 %)

2006 2008 2010 2012 2014

R&D in consortiums

EU Consortium Demo 2

EU Consort. Demo 1

Documents

Innovative Silesian Cluster for Clean Coal Technologies FUTURE EU ENERGY MIX– WILL COAL PLAY AN IMPORTANT ROLE ? Gliwice, 29th of May 2006 Super critical