Abstract
Abstract Post-combustion carbon capture is one of the feasible methods to reduce emission of carbon dioxide (CO 2 ) from coal-fired power plants. This work proposes a hollow fiber based rapid temperature swing adsorption (RTSA) method for capturing CO 2 from a typical 550 MW coal-fired power plant. The proposed RTSA approach can shorten the operating time and using low-grade energy for regeneration of adsorption elements. This work studies the impact of using low-grade steam extracted from a low-pressure turbine as the heating source of the dual column vacuum RTSA (DC-vRTSA). The DC-vRTSA at 120 °C-55 °C will reduce the efficiency of the coal-fired power plant by 8.2 % to 1.9 %. The lowest CO 2 capture cost, 19.20 US dollars per tons of captured CO 2 , is located at 60 °C desorption temperature.
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