2015•Separation Science and TechnologyRequires access

Modeling and simulation for post-combustion carbon dioxide capture from power plant flue gas with economic analysis

Nupur Gupta, Arijit Mondal, Bisweswar Das, Binay Deogam, Sanjib Barma, Bishnupada Mandal

Abstract

In this study three configurations, viz. conventional MEA, interstage absorber, and interstage absorber with two stripper configuration have been techno-economically evaluated for the optimized result by carrying out simulations using ASPEN PLUS. An economic model defined for carbon capture using 30 wt% MEA to reduce CO2 in flue gas to 0.5 mol% of 550 MWe coal fired power plant resulted in increase in COE of power plant by 20.6, 17.4, and 15.6 percents for the three configurations, respectively. The CO2-avoided cost for the three configurations are 65.94, 64.05, and 63.09 ($ /tonne of CO2 avoided), respectively.

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Key concepts: Flue gas, Chemistry, Power station, Combustion, Carbon dioxide, Tonne, Carbon capture and storage (timeline), Coal