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CO2 capture for gas turbines: an integrated energy-efficient process combining combustion in oxygen-enriched air, flue gas recirculation, and membrane separation.
- Source :
-
Chemical Engineering Science . Jun2013, Vol. 97, p256-263. 8p. - Publication Year :
- 2013
-
Abstract
- Abstract: Carbon capture and storage for power generation systems is a major issue for achieving greenhouse gas emission reductions. Studies are usually dedicated to coal-fired power plants, but few efforts have addressed the challenge of CO2 capture for a gas turbine. In this paper, a recently reported hybrid process based on oxygen enriched air combustion, flue gas recycling and CO2 capture by membranes is explored for a 250MW open cycle gas turbine. An improved configuration based on an energy recovery system integrated with a heat exchanger offers superior performance compared to the reference gas turbine cycle. It is shown that an overall energy requirement below 2GJth/ton of CO2 captured (i.e. around 205kWhelectrical/ton CO2) can be achieved using a highly selective membrane (CO2/N2 selectivity of 200) operated under optimal process conditions. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00092509
- Volume :
- 97
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Science
- Publication Type :
- Academic Journal
- Accession number :
- 89280635
- Full Text :
- https://doi.org/10.1016/j.ces.2013.04.027