Life cycle greenhouse gas assessment of a coal-fired power station with calcium looping CO<inf>2</inf> capture and offshore geological storage

Hurst, TF; Cockerill, TT; Florin, NH

Life cycle greenhouse gas assessment of a coal-fired power station with calcium looping CO<inf>2</inf> capture and offshore geological storage

Hurst, TF Cockerill, TT Florin, NH

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Publication Type:: Journal Article
Citation:: Energy and Environmental Science, 2012, 5 (5), pp. 7132 - 7150
Issue Date:: 2012-05-01

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Field	Value	Language
dc.contributor.author	Hurst, TF	en_US
dc.contributor.author	Cockerill, TT	en_US
dc.contributor.author	Florin, NH https://orcid.org/0000-0002-8436-4711	en_US
dc.date.issued	2012-05-01	en_US
dc.identifier.citation	Energy and Environmental Science, 2012, 5 (5), pp. 7132 - 7150	en_US
dc.identifier.issn	1754-5692	en_US
dc.identifier.uri	http://hdl.handle.net/10453/28852
dc.description.abstract	Carbon Capture and Storage (CCS) is an essential technology for reducing global CO2 emissions in the context of continued fossil fuel use in the power sector. To evaluate the emission reduction potential of any low-carbon generation technology it is necessary to consider emissions over the entire lifetime of the plant. This work examines the lifecycle greenhouse gas emissions of a 500 MWe pulverised coal-fired power plant with post-combustion Calcium Looping (CaL) and off-shore geological storage. CaL uses solid CO 2-sorbent derived from abundant and non-toxic limestone (CaCO 3) and is currently being piloted at the 1-2 MWth scale in Europe (Spain and Germany). This technology promises to be very competitive with the more mature chemical absorption processes, with the potential to reduce the efficiency and cost penalties of CO2 capture. We demonstrate that the emission intensity of a coal-fired power plant with CaL is at least comparable with one using MEA-solvent technology (i.e., ∼ 229 gCO 2e/kWh vs. 225 gCO2e/kWh). However, there is significant potential for additional emissions reduction when considering the recarbonation of exhausted sorbent in landfill. Furthermore, a coal-fired power plant with CaL could be carbon-neutral - or even achieve a net removal of CO2 from the atmosphere. That is, if the exhausted sorbent is used in the cement industry substituting the input of fresh-limestone; or if the exhausted sorbent is disposed in the ocean forming bicarbonate. © 2012 The Royal Society of Chemistry.	en_US
dc.relation.ispartof	Energy and Environmental Science	en_US
dc.relation.isbasedon	10.1039/c2ee21204h	en_US
dc.subject.classification	Energy	en_US
dc.title	Life cycle greenhouse gas assessment of a coal-fired power station with calcium looping CO<inf>2</inf> capture and offshore geological storage	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.for	0502 Environmental Science and Management	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
pubs.organisational-group	/University of Technology Sydney/DVC (Research)/Institute For Sustainable Futures
pubs.organisational-group	/University of Technology Sydney/Strength - ISF - Institute for Sustainable Futures
utslib.copyright.status	closed_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	5	en_US

Abstract:

Carbon Capture and Storage (CCS) is an essential technology for reducing global CO2 emissions in the context of continued fossil fuel use in the power sector. To evaluate the emission reduction potential of any low-carbon generation technology it is necessary to consider emissions over the entire lifetime of the plant. This work examines the lifecycle greenhouse gas emissions of a 500 MWe pulverised coal-fired power plant with post-combustion Calcium Looping (CaL) and off-shore geological storage. CaL uses solid CO 2-sorbent derived from abundant and non-toxic limestone (CaCO 3) and is currently being piloted at the 1-2 MWth scale in Europe (Spain and Germany). This technology promises to be very competitive with the more mature chemical absorption processes, with the potential to reduce the efficiency and cost penalties of CO2 capture. We demonstrate that the emission intensity of a coal-fired power plant with CaL is at least comparable with one using MEA-solvent technology (i.e., ∼ 229 gCO 2e/kWh vs. 225 gCO2e/kWh). However, there is significant potential for additional emissions reduction when considering the recarbonation of exhausted sorbent in landfill. Furthermore, a coal-fired power plant with CaL could be carbon-neutral - or even achieve a net removal of CO2 from the atmosphere. That is, if the exhausted sorbent is used in the cement industry substituting the input of fresh-limestone; or if the exhausted sorbent is disposed in the ocean forming bicarbonate. © 2012 The Royal Society of Chemistry.

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http://hdl.handle.net/10453/28852