DoosanCO2 Capture Ready
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Transcript of DoosanCO2 Capture Ready
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CO2 Capture Ready Plant for IndiaAn Update
Mr R PadmanabhanChennai, India
Delhi 21 January 2008
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Page 1
Company update
Our new name - Doosan Babcock Energy LimitedDoosan Babcock Energy Limited, Subsidiary of Doosan Heavy Industries of South Korea, and part of the Doosan
Group the oldest and one of the top 10 conglomerates in Korea US$13bn turnover company (2006)
Market leader in gas, coal, nuclear power generation and desalination. e.g. SIPAT, 3 x 660MWe and Mundra, 5 x 800MWe
Our commitment is to all forms of power generation, including clean coal, nuclear, gas and renewables
The Doosan Groups Centre of Excellence and global R&D base for Boilers and CO2 capture which includes our India organisation
Nuclear Thermal Turbine & Generator
Desalination Casting & Forging Construction
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Page 2
In one year - How things have changed for coal and gas
14th Sept 07, Hans Stehr, chairman of UN CDM Exec Board:``Fossil fuel will remain a big part of the world's energy mix for decades to come,... essential we burn that fuel as efficiently as possible.''
World Wide Recognition: These plants will operate for 40- 50 years; So they need to be built Capture Ready- TODAY to avoid carbon lock-in
EU Agrees: renewables and energy efficiency, whilst vital, are not enough Coal has a huge role in the new EU Energy Policy New Plant to be capture ready from 2010, 10-12 demonstrations of CCS operational by 2015, CCS in operation from 2020,
Gas has its issues Price instability. Security of supply. Gas is also a CO2 emitter, will need CCS
for deep cuts
So coal projects beginning to be
developed which are Capture Ready
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Page 3
Comparison of Carbon Capture options for Coal power plant
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Amine Oxy Combustion IGCC
Amine Oxyfuel IGCC
Amine Oxyfuel IGCC
Cost of Electricity (Eurocents/kwh)
Specific Investment costs (Euro/kw)
From joint paper with Jacobs at Powergen 2006
1400-1800 Euro/kwfor New build, 800 Euro/kwfor Retrofit
5 -6.2 Euro/kwhfor New build,
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Page 4
New Coal Fired Plants planned in the UK
Section 36 applied for 11/12/062012
New build ASC (Capture Ready) 2 x 800MW KingsnorthE.ON
FEED study well advanced2011
1 or 2 x 500MW ASC Retrofit(Capture Ready)FerrybridgeSSE
PF Oxyfuel (All are retrofits at the moment)
PF - Post Combustion
IGCC
Feasibility study announced 17/05/07
2012 onwards
ASC Retrofit (Capture ready), up to 3390MW
Longannet and CockenzieScottish Power
Scoping Report submitted 13/3/072013/14
New build ASC (Capture Ready) 1600MWTilburyRWE npower
Scoping Report submitted 11/05/072014
New build ASC (Capture ready) 3x800 MWBlytheRWE npower
FEED study started2011800 MW IGCC with CCSTeessideCentrica
Internal feasibility study underway2012450-500MW IGCC with CCSKillingholmeE.ON
Section 36 consent. FEED study starting20112 x 430MW IGCC with CaptureHatfieldPowerfuel
StatusStart up DateSize/TechnologyProject
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Page 5
Ferrybridge ASR Retrofit Oxyfuel Capture ready
A future proofed Advanced Supercritical Retrofit to Ferrybridge Power Station Oxyfuel capture ready.
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Page 6
Ferrybridge Retrofit Specifics Present Boiler
Subcritical boiler
4 x 500MWe units
Ordered 1961, commissioned mid/late 60s
Steam Conditions:160 bar,565oC/ 565oC
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Page 7
Ferrybridge - Supercritical Boiler Retrofit with Oxyfuel Capture Ready
507 MWe (gross) 476MWe (net) /unit, 290 bar/ 6000C / 6100C BMCR steam flow 1,380 Te/hr Bituminous coal with up to 25% Biomass BOFA system New boiler within existing boiler house Re-use of much BOP equipment,
new SCR and FGD POSIFLOWTM low mass flux furnace
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Page 8
Ferrybridge ASR Capture Ready Application - Summary
Currently sub-critical operation with cycle efficiency 36.7%
With SCR and FGD, new cycle efficiency 44.7% 22% increase in overall efficiency, despite SCR/FGD penalty
CO2 reduction (with load factor of 70%) is 483,500tes/yr 18% reduction in CO2 emissions
Status of design : No technical showstoppers
ASR boiler fits easily within existing structure
Turbine layout compatible with existing foundations
Anticipated costs within budget
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Page 9
What does it take to be CCS ready?
Furnace thermal performance to suit oxyfuel/air coal combustion
Boiler performance considerations
Oxy-fuel burners would fit in the same space as regular burner without need for major pressure part modification
Flue gas recycle consideration in boiler design
Boiler Layout consideration for interfacing equipment
Boiler sealing against tramp air ingress
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Page 10
What will a Supercritical Retrofit involve at Longannet & Cockenzie?
Replacement of boiler pressure parts, within boilerhouse envelope
Lighter boiler weight means re-use of existing primary structure
Replacement of HP and IP turbine, modified LP turbine
Replacement of all steam and feed water piping
New feed pumps and feed heating system
New DCS system (if not already installed)
Re use of bulk of ancillary equipment
New SCR plant New FGD plant (if not already
installed)
600 MWe units similar to Ferrybridge ASR & CCS ready
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Page 11
Advanced Supercritical Retrofit (ASR)
POSIFLOWTM Boiler Retrofit Process demonstrated at Yaomeng, China in 2002
Retrofit of Chinese designed sub-critical 300MWe boiler. Flaws in its design meant it had a low availability due to overheating Retrofitted with Doosan Babcock POSIFLOWTM boiler Order received Dec 07 for similar conversion of a 2nd boiler
Technology could be applied to existing 200/210/250 MWe Indian boilers subject to full technical evaluation
There is a minimum size of unit below which the technology cannot be applied
Indian 200/210/250MWe boilers are borderline requires a feasibility study to fully evaluate
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Page 12
Carbon Capture by Oxyfuel firing on Pulverised Coal Plant
Figure courtesy of Vattenfall
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Page 13
- Pilot scale tests by Doosan Babcock Energy 1996
- IEA studies completed
- EU project ENCAP underway
- EON 1MW rig now operational, confirmed DBE results
- DTI funded collaborative R&D projects in progress (Doosan Babcock Energy, EON, RWE, Air Products )
- Vattenfall 30MW demonstration plant being built , and similar projects at Lacq and Callide
- Full scale 40 MW burner test planned by Doosan Babcock in 2008/9
Carbon Capture by Oxyfuel firing on Pulverised Coal Plant
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Page 14
To develop a competitive Oxyfuel technology suitable for full scale application 2010.
A staged approach through the development and demonstration of Oxyfuel technology:-
- Stage 1 : Fundamentals and System Design
- Stage 2 : Modified Design Tools and Component Testing
- Stage 3 : Reference Designs
Doosan Babcock Oxyfuel Burner development program
Three Stage Development Programme
2005 2006 2007 2008 2009 2010
Stage 1Stage 2Stage 3
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Page 15
Multi Fuel Burner Test Facility (MBTF)
commissioned in Renfrew in 1999
conversion to Oxyfuel under the UK OXYCOAL collaborative project.
7m ($14m) funding now in place.
Stage 2 will involve conversion of the test facility to OXYCOAL firing
Demonstration of a full utility sized Oxyfuel PF combustion,
The first full-scale test of Oxyfuel firing in the world
Doosan Babcock burner test facility to be converted to Oxycoal firing
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Page 16
Carbon Capture Ready - Oxyfuel
Space for Air Separation Unit
Space for CO2 cleaning and compression
Space for CO2 recycle ducts
FGD may be needed for some coals
Feasible CO2 pipeline route to a storage area
Main Considerations:
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Page 17
Site Layout - Capture Plant Space Requirements
8
0
m ASU 1 ASU 2 CO2
70m 70m
1 x ASC BT Oxyfuel Unit:- 2 x ASU trains : 80 m x 140 m- CO2 Compression : 80 m x 15 m- Maximum Height : 68 m
CW Tower Pond Dia ~90mCW Tower Height ~110m
1
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m
230m
1 x ASC BT Amine Unit:- 2 x DCC- 2 x Fans / Blowers- 2 x CO2 Absorber Towers (12.5m Dia x
45m Height)- 1 x CO2 Stripper Tower (10m Dia.)
- CO2 Compression : 40 m x 15m approx
15m
DCC &ABSORBER 2
DCC & ABORBER 1
CO2
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15m
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Page 18
Key Messages
Work to date has demonstrated that ASC Retrofits, designed to beCapture Ready are available options today subject to initial feasibility study of each plant.
Indian coals, with high ash and low reactivity, are well suited to Oxyfuel firing than either Amine scrubbing or IGCC.
A CCS Indian-based demonstration, involving oxyfuel firing, should be a high priority
Feasibility study of Indian 200/210/250MWe units urgently needed
EU expertise and capital, combined with Indian skills and availability of utility plant in desperate need of renovation provides an
Ideal Opportunity for EU-Indo Co-operation & International Leadership
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Page 19
Thank you for your attention
Doosan Babcock is committed to development and global implementation of
cleaner power plants - clean coal, clean gas, nuclear and renewables as rapidly as
the market allows
Our Commitment to the Industry
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Page 20
Carbon Dioxide Capture Technologies
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Page 21
- IEA, EU projects underway
- Requires scale up ( factor of 10)
- 300 MW planned by MHI
- Collaborative DTI project in negotiation
- Technology likely to be available for 2010 / 12 implementation
Large Scale CO2 Capture Plant
Post-combustion Carbon Capture - Amine Scrubbing on Pulverised Coal Plant