carbon capture and storage - france in the united kingdom - la
TRANSCRIPT
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Carbon Capture and StorageDr Jon GibbinsSenior Lecturer
Energy Technology for Sustainable Development GroupMechanical Engineering Department
Imperial College LondonSW7 2AZ, UK
Principal InvestigatorUK Carbon Capture and Storage Consortium
www.ukccsc.co.uk
OSI UK/China Focal Point Scheme contact for Climate Change & Environment
Tel: 020 7594 7036Mob: 07812 901244Fax: 020 7594 1472email: [email protected]
Anglo-French Scientific Discussion Seminar, Organised by the Science and Technology
Department of the French Embassy in the UK and Imperial College London
27 September, 2007
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FOSSIL FUELS: CLIMATE AND ENERGY
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STERN REVIEW: The Economics of Climate Change(already at 430 ppm CO2e and currently rising at roughly 2.5 ppm every year)
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CRITICAL ROLE FOR CCS
http://www.ipcc.ch/
CARBON IN
FOSSIL FUELS
CARBON THAT CAN BE EMITTED TO ATMOSPHERE
1990-2100
‘Unconventional oil’ includes oil sands and oil shales. Unconventional gas’ includes coal bed methane, deep geopressured gas etc. but not a possible 12,000 GtC from gas
hydrates.
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Coal Oil Gas Uranium*
Australia/New Australia/New ZealandZealand
Sources: BP Statistical Review 2005; WEC Survey of Energy Resources 2001; Reasonably Assured Sources plus inferred resources to US$80/kg U 1/1/03 from OECD NEA & IAEA Uranium 2003; Resources, Production & Demand updated 2005; *energy equivalence of uranium assumed to be ~20,000 times that of coal
N o rth A m e ric a
C e n tra l/S o u th A m e ric a
O th e r A sia /P a c ific in c In d ia n S u b c o n tin e n t
M id d le E a st
A fric a
C h in a
E u ro p e (e xc l. R u ssia n F e d )
R u ssia n F e d e ra tio n
A u stra lia /N e w Z e a la n d
AfricaAfrica
World Energy Reserves 2004 (Mtoe)
EuropeEurope
Russian Russian FederationFederation
Middle EastMiddle EastChinaChina
Other Other Asia/PacificAsia/Pacific
North AmericaNorth America
South AmericaSouth America
Brendan Beck, World Coal Institute, Coal, 3M Sustainable Energy Engineering, Imperial College, 12 October 2006
COAL IS AN ENERGY ASSET AND A CLIMATE THREAT
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GEOLOGICAL STORAGE
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Carbon Storage Options
IPCC (2005)
Geological Storage Options for CO21. Depleted oil and gas reservoirs2. Use of CO2 in enhanced oil recovery3. Deep unused saline water-saturated reservoir rocks4. Deep unmineable coal seams5. Use of CO2 in enhanced coal bed methane recovery6. Other suggested options (basalts, oil shales, cavities)
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270 GtC2700 GtC
185 GtC 245 GtC55 GtC<4 GtC
www.ipcc.ch
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Sleipner, aquifer storage for 1Mt/yr CO2
www.statoil.com, 2002
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www.statoil.com, 2002
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www.statoil.com, 2002
Time lapse (4D) seismic trackingof injected CO2
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Will it leak?
• Storage sites won’t have a design leakage rate
• Remediation possibilities – remake wells, depressurise reservoir etc.
• Leakage most likely in the short/medium term
• Even then, hard to extract all of the CO2once it is spread out in a porous rock layer
Figure from IPCC (2005)
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CO2 CAPTURE
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After Jordal, K. et. al. (2004) Oxyfuel combustion for coal-fired power generation with CO2 capture – opportunities and challenges Proceedings of 7th International Conference on Greenhouse Gas Control Technologies, www.ghgt7.ca
O2
CO2 dehydration, compression transport and
storage
CO2 separationPower & Heat
Air separation
Gasification + shift + CO2 separation
Air separation
Coal
Air
Power & Heat
Power & Heat
Flue gas
N2, O2, H2O
CO2
Air
Coal
Air
H2
N2, O2, H2O
CO2
Coal
O2Air N2
CO2 (with H2O)
Recycle
POST-COMBUSTION CAPTURE
PRE-COMBUSTION CAPTURE
OXYFUEL (O2/CO2 RECYCLE COMBUSTION) CAPTURE
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Tilbury. Capture ready- photo montage(some details omitted)
Richard Hotchkiss, RWE npower R&D, RECENT DEVELOPMENTS IN CARBON CAPTURE AND STORAGECOMBUSTION DIVISION OF THE COAL RESEARCH FORUM . 17 April 2007, http://www.coalresearchforum.org/pastmeetings.html
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Tilbury. Capture ready- photo montage(some details omitted)
Richard Hotchkiss, RWE npower R&D, RECENT DEVELOPMENTS IN CARBON CAPTURE AND STORAGECOMBUSTION DIVISION OF THE COAL RESEARCH FORUM . 17 April 2007, http://www.coalresearchforum.org/pastmeetings.html
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IEA GHG (2006), CO2 capture as a factor in power station investment decisions, Report No. 2006/8, May 2006
Costs include compression to 110 bar but not storage and transport costs. These are very site-specific, but indicative aquifer storage costs of $10/tonne CO2 would increase electricity costs for natural gas plants by about 0.4 c/kWh and for coal plants by about 0.8 c/kWh.
Natural gas plants Coal/solid fuel plants
IGCC or PC?SIMILAR COST TRENDS FROM A NUMBER OF GENERIC UK
AND US STUDIES, BUT ACTUAL PROJECTS MORE VARIABLE
? ? ? ?
NEED TO GET PROJECT-SPECIFIC
COSTS
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FIRST TRANCHE
Demonstration
SECOND TRANCHE
Commercial &Regulatory Drivers
Overall effortalso important
to maintain continuity
GLOBALCCS
ROLLOUTBig prize is getting two learning cycles
from two tranches of CCS projects before
global rollout
EUCCS
ROLLOUT
Earliest demo plants?Last plants in first tranche
First plants in second trancheLater plant in second tranche
First EU rollout plantsFirst global rollout plants
PLANTSCOMINGINTO SERVICE
TIMING FORDesignConstructionLearning time
2015DEMO
PROJECTSIN PLACE
2020CCS
STANDARDIN EU
2025GLOBAL
CCSROLLOUT
Feedback fromfirst tranche intosecond tranche Feedback from
second tranche intoEU and global rollout
12 plants by 2015 in
EU
CCS build-up plus all plants built capture-readyCCS retrofit on capture-ready plants
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How to make plants capture-ready Must:• Have access to suitable geological storage• Have space and access for capture equipment• Have reasonable confidence it will work (feasibility study)
Also consider:• Up-front expenditure with savings later, e.g.
Bigger/better equipment?Move near cheaper/better CO2 storage?
But only pre-investments with very good returns justifiedSee IEA GHG report on capture-ready
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E.ONRobin IronsDoosan-BabcockGnanam SekkappanImperialMathieu Lucquiaud,Hannah ChalmersJon GibbinsIEA GHGJohn Davison
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POLICYBACKGROUND
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CCS DEMONSTRATION PROJECT COMPETITIONFollowing the 2007 Budget announcement, the Government is engaged in designing a competition framework for the UK CCS demonstration. Our intention is to launch the competition in November 2007. The criteria against which proposals will be assessed are likely to include the need for any project proposal to:– be located in the UK;– cover the full chain of CCS technology on a commercial scale power station (capture, transport and storage);– be based on sound engineering design (reliable and safe) underpinned by a full front-end engineering and design study;– set out the quantum of financial support requested;– be at least 300MW, and capture and store around 90% of the carbon dioxide and thereby contribute at least an additional 0.25 Mt/yr of carbon savings to the UK’s domestic abatement targets (relative to a gas-fired power station of equivalent size without CCS);– start demonstrating the full chain of CCS at some point between 2011 and 2014;– address its contribution to the longer term potential of CCS in the UK, (for example, through the potential of shared infrastructure) and to theinternational development of CCS; and– be supported by a creditworthy developer entity.
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CCS Proposals – UK
PC, CR, new supercritical3 x 800MWCoalRWE, Blyth
PC, CR, supercritical retrofit, (oxyfuel?)~ 2400 MWCoalScottish Power, Longannet
PC, CR, new supercritical, post-com2 x 800 MWCoalRWE, Tilbury
PC, CR, supercritical retrofit, oxyfuel1 or 2 x 500MWCoalSSE, Ferrybridge
PC, CR, new supercritical, post-com2 x 800MWCoalE.ON, Kingsnorth
PC, CR, supercritical retrofit, (oxyfuel?)~ 1200 MWCoalScottish Power, Cockenzie
IGCC + shift + precombustion450 MWCoal(+petcoke?)
E.ON, Killingholme, Lincolnshire coast
IGCC+CCS addition to planned NGCC CHP plant
450 MW (or more, with retrofit)
Coal(+petcoke?)
Conoco-Phillips, Immingham
IGCC + shift + precombustionShell gasifier
~900 MWCoalPowerfuel/KuzbassrazrezugolHatfield Colliery
IGCC + shift + precombustion800 MWCoal (petcoke)
Progressive Energy/Centrica, Teeside
Capture technologyPlant outputFuelProject
Proposed full-scale (~300 MWe and above) CCS projects - indicative only
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Powerfuel Power Ltd
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UK Geological Storage
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Future Thames Estuary CO2 gathering hub?
Powerfuel Power Ltd (plus Imperial Thames Estuary proposal)
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POTENTIAL FOR BIOMASS WITH CCS
Tyndall Centre'Decarbonising the UK’http://www.tyndall.ac.uk
Tyndall UK aviation emissions projections for 2050 ~ 30 MtCRCEP estimates for max UK biomass production by 2050 ~ 60 Mt Carbon content of biomass available for conversion ~ 24 MtCCarbon captured using biomass with CCS ~ 90%Energy recovered compared to use without CCS ~ 75%Oil price equivalent of $50/tonne CO2 $22/barrelTransport Atmosphere carries CO2 from plane to plant for free!
But need to supply biomass to CCS plants
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WHAT ADVANCES ARE NEEDED?• Start on first tranche plants – will immediately trigger R&D• Get new technologies working:
IGCC - mainly engineeringoxyfuel - basic research and engineering in parallel
• Get the best out of existing PC technologypost-combustion capture optionscapture-ready and retrofit strategies
• Storage issues: ETS, capacity optimisation, safety, monitoring, long term liability – rapid progress needed
• Transport and storage systems – pipeline routing issues• Political, regulatory, fiscal backup – post-Kyoto process• Build capacity: people, expertise, manufacturing capacity• Decarbonised electricity=new uses in transport & buildings CCS systems will operate in new ways in new markets
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CCS OR THE END!