Journal of Industrial and Engineering Chemistry, Vol.96, 213-218, April, 2021
Catalytic syngas production from carbon dioxide of two emission source scenarios: techno-economic assessment
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We designed process alternativesfor syngas production from carbondioxide (CO2)based on twoemission source scenarios: flue gas (FG) in power plants vs. blast furnace gas (BFG) in ironmaking and steelmaking plants. In the both scenarios CO2 is separated through a monoethanolamine-based chemical absorption system and then converted to carbon monoxide (CO) by reverse water gas shift reaction using Cu/ZnO/Al2O3 catalyst, thereby resultinginasyngasstream(H2:COmolarratio = 2:1).Toreduceenergyrequirementsof theprocess,wedesigned a heat exchanger network for meeting minimum energy consumption by maximizing heat recovery from the process streams. Our economicevaluation results show that theintegrated strategy results minimum sellingprice of $19.31 per GJ (FG scenario) and $16.02 per GJ (BFG scenario).
Keywords:Syngas production;Steel-work off-gases;Kinetic model;Techno-economic analysis;Flue gas;Process simulation
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