Facilitated transport membrane for separation of acetylenes from olefins

摘要

PURPOSE: A facilitated transport membrane for isolating acetylene compounds in olefin is provided to prevent membrane reduction and to ensure high stability. CONSTITUTION: A facilitate transport membrane for isolating acetylene compounds in olefin of 2-5 carbon atoms contains ionic liquid of imidazolium compound of chemical formula 1. Olefin is ethylene, propylene, butyelen, isoprene, or mixture thereof. The acetylene compounds are acetylene, propine(methylacetylene), ethylene acetylene, isopropylacetylene, or mixture thereof. A method for preparing the facilitated transport membrane comprises a step of coating the ionic liquid to a porous support.