ASYMMETRIC, ENTIRELY COATED WITH A SHELL FLAT-SHEET MEMBRANES FOR CLEANING H2 AND ENRICHMENT OF NATURAL GAS

摘要

An asymmetric integrally-skinned flat sheet membrane comprising a miscible blend of an aromatic polyethersulfone (PES) polymer and an aromatic polyimide polymer is used for gas separations such as hydrogen purification, separation of hydrogen and methane and to separate other gases and liquids. UV radiation may be applied to the surface of the membrane for improved properties.