Cholinium‐based Supported Ionic Liquid Membranes: A Sustainable Route for Carbon Dioxide Separation

Abstract

Abstract Aiming at full sustainability of CO 2 separation processes, a series of supported ionic liquid membranes based on environmentally friendly cholinium carboxylate ionic liquids were successfully prepared. Their gas permeation properties were measured and high permselectivities were obtained for both CO 2 /CH 4 and CO 2 /N 2 .