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Hybrid Process Using A Membrane To Enrich Flue Gas Co2 With A Solvent-Based Post-Combustion Co2 Capture System, Kunlei Liu, Reynolds A. Frimpong, Kun Liu
Hybrid Process Using A Membrane To Enrich Flue Gas Co2 With A Solvent-Based Post-Combustion Co2 Capture System, Kunlei Liu, Reynolds A. Frimpong, Kun Liu
Center for Applied Energy Research Faculty Patents
A process for recovery of CO2 from a post-combustion gas includes pre-concentrating a CO2 component of the post-combustion flue gas by passing the post-combustion gas through a CO2-selective membrane module to provide a CO2-enriched permeate stream and a CO2-lean reject stream. Next, in a CO2 absorber, both the CO2-enriched permeate stream and CO2 lean reject stream, fed to separate feed locations on the CO2 absorber, are contacted with a scrubbing solvent to absorb CO2 and provide a carbon-rich scrubbing solvent. Finally, absorbed CO2 is stripped …