Polysulfone-co-poly(ethylene oxide) random copolymer membranes for CO2 separation

초록

Membrane-based gas separation is developing industrial membrane separation technologies. Current membrane-based gas processes and potential applications include hydrogen separation and recovery from ammonia purge gas, refinery, and synthesis gas stream in the petrochemical industry. Other applications include CO2 separation from flue gas in power plants, natural gas processing, and landfill gas upgrading. A discussion covers a new polysulfone membranes, including poly(ethylene oxide) (PEO) segments for selective CO2 separation; membrane applications, e.g., gas separation, ultrafiltration, and support membranes for nanofiltration and reverse osmosis; PEO with ether oxygen units that provide excellent CO2 separation and permeation properties; and correlation between CO2 permeability and CO2/H2, CO2/CH4, and CO2/N2 selectivity. This is an abstract of a paper presented at the AIChE 2010 Spring National Meeting (San Antonio, TX 3/21-25/2010).