Minor component effects on membrane gas separation for carbon capture

Abstract

Carbon capture and storage is a strategy that will enable continual use of current power generation capability in a carbon constrained world. Membrane gas separation for carbon capture has a number of advantages over other separation technologies, such as solvent extraction. However, minor components in the feed gas, whether from precombustion or post-combustion capture strategies, limit the performance of membranes and result in premature aging and possibly failure. The impact of minor components, particularly water, H2S, and CO on a range of polymeric membranes, i.e., polysulfone, Matrimid 5218 and 6FDA-TMPDA (a polyimide), were studied. The behavior of gas separation membranes under condi..