Low Energy CO2Capture by Electrodialysis

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Abstract

Liquid amine scrubbing has been widely and intensively investigated at demonstration scale to capture CO2at mass CO2emission sources, such as thermal power plants and steelworks. However, CO2regeneration process in a desorber is energy intensive, which limits implementation of this capture technology. Herein we propose an alternative CO2capture method by electrodialysis. CO2in a flue gas or blast furnace is trapped in aqueous K2CO3, and the resulting solution is condensed by electrodialysis. The trapped CO2is finally recovered under vacuum. This technique can significantly reduce the required energy to capture CO2in comparison to the current technology. Published by Elsevier Ltd.

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APA

Taniguchi, I., & Yamada, T. (2017). Low Energy CO2Capture by Electrodialysis. In Energy Procedia (Vol. 114, pp. 1615–1620). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2017.03.1902

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