Effect of Gas Recycling on the Performance of a Moving Bed Temperature-Swing (MBTSA) Process for CO 2 Capture in a Coal Fired Power Plant Context

Giorgia Mondino, Carlos A. Grande and Richard Blom
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Giorgia Mondino: SINTEF Materials and Chemistry, P. O. Box 124 Blindern, 0314 Oslo, Norway
Carlos A. Grande: SINTEF Materials and Chemistry, P. O. Box 124 Blindern, 0314 Oslo, Norway
Richard Blom: SINTEF Materials and Chemistry, P. O. Box 124 Blindern, 0314 Oslo, Norway

Energies, 2017, vol. 10, issue 6, 1-18

Abstract: A mathematical model of a continuous moving-bed temperature-swing adsorption (MBTSA) process for post-combustion CO 2 capture in a coal-fired power plant context has been developed. Process simulations have been done using single component isotherms and measured gas diffusion parameters of an activated carbon adsorbent. While a simple process configuration with no gas re-circulation gives quite low capture rate and CO 2 purity, 86% and 65%, respectively, more advanced process configurations where some of the captured gas is recirculated to the incoming flue gas drastically increase both the capture rate and CO 2 purity, the best configuration reaching capture rate of 86% and CO 2 purity of 98%. Further improvements can be achieved by using adsorbents with higher CO 2 /N 2 selectivity and/or higher temperature of the regeneration section.

Keywords: CO 2 capture; adsorbents; post-combustion; moving bed; temperature-swing; process modelling; gPROMS; gas recycling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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