NOVEL CO_2 CAPTURE MEMBRANES BASED ON POLYMERIZED IONIC LIQUIDS AND POLYMERIC POROUS SUPPORTS

摘要

Highly CO2 selective membranes and innovative process designs for CO_2 capture can compete with absorption due to relatively low energy consumption and small foot print. In this paper, novel materials poly(ionic liquids) (PILs) are combined with membrane separation for CO_2 capture. Poly(ionic liquid)s are solid polymers derived from ionic liquids (ILs) that share many of their physical and chemical properties. For a variety of ILs and PILs, the CO_2 sorption is significantly higher than either CH4 or N2 due to Lewis acid-base interactions between the CO_2 and nitrogen-containing groups [1].