Patent ID: 7025804
Filing Date: 2006-04-11
Classification: B01D,C07C,C10G

Abstract:
1. A method for processing a feed, said method comprising: (a) providing a selectively permeable membrane wherein said membrane comprises a first side and a second side, wherein said membrane further comprises at least one polymer or copolymer comprising a repeating unit of formula (I):  in which R  in which Z is a moiety having a composition formula (M),  and in which R b) contacting said first side of said membrane with a gaseous feed mixture of at least two or more gas components; c) causing at least one component of said gaseous feed mixture to selectively permeate through the membrane, thereby forming on said second side of said membrane a permeate composition which has a concentration of at least one component that is greater than the concentration of said gaseous feed mixture; d) removing from said second side of said membrane said permeate composition; and e) withdrawing from said first side of said membrane a composition, which has a concentration of at least one component that is less than the concentration of said gaseous feed mixture.