Aspen plus supported design of pre-combustion CO2 capture processes based on ionic liquids

• A pre-combustion process based on [P 2228 ][CNPyr] was modelled and optimized. 80 operating configurations were techno-economic evaluated. Suitable pressures temperatures allowed minimizing capital operational costs. Direct costs lower than U.S. Department of Energy’s 40$/t CO2 goal achieved. H 2 production processes from steam methane reforming combined cycle power plants require carbon dioxide removal raw synthesis gas to obtain a useful -rich product stream. In this work, wide variety techno-economically evaluated in Aspen Plus commercial simulator improve the efficiency CO capture chemical absorption using ionic liquid. Multiple (from 30 °C 70 °C) regeneration (between 90 120 tested along with four different regenerating pressures: 0.1, 0.25, 0.5 1 bar. Energy solvent consumptions calculated for nine COSMO-based/Aspen methodology Economic Analyzer tool. The most promising results obtained when IL at bar elevated temperatures, due higher equipment associated vacuum greater utilities cost related heat transfer gap between both grows. minimum achieved 64.1$/t considering an scaled up price 50 $/kg, but it could even be further less 40 $/t new generation solvents, only direct considered.