The calcium looping cycle for large-scale CO2 capture |
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Authors: | J. Blamey E.J. Anthony J. Wang P.S. Fennell |
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Affiliation: | 1. Imperial College of Science, Technology and Medicine, London SW7 2AZ, UK;2. CETC-O/NRCan, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1 |
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Abstract: | The reversible reaction between CaO and CO2 is an extremely promising method of removing CO2 from the exhaust of a power station, generating a pure stream of CO2 ready for geological sequestration. The technology has attracted a great deal of attention recently, owing to a number of its advantages: the relatively small efficiency penalty which it imposes upon a power station (estimated at 6–8 percentage points, including compression of the CO2); its potential use in large-scale circulating fluidised beds (a mature technology, as opposed to the vastly upscaled solvent scrubbing towers which would be required for amine scrubbing); its excellent opportunity for integration with cement manufacture (potentially decarbonising both industries) and its extremely cheap sorbent (crushed limestone). |
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Keywords: | Calcium looping Carbon capture and storage CCS |
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