Patent ID: 6508860
Filing Date: 2003-01-21
Classification: B01D

Abstract:
A process for separating component gases of a gas mixture comprising the steps of(A) providing a mixed matrix gas separation membrane comprising an active layer of a treated molecular sieve dispersed in a continuous phase of a matrix polymer in which the treated molecular sieve comprises the reaction product of a (i) molecular sieve through which at least one component gas in the mixture is preferentially gas permeable relative to another component gas, with (ii) a monofunctional organosilicon compound having the formula Si(XYR1R2) in which X is a displaceable radical, Y is a linking group, and R1 and R2 are each independently any radical other than a displaceable radical, (B) contacting the gas mixture on one side of the membrane to cause the component gases to selectively permeate the membrane, and (C) removing from the opposite side of the membrane a permeate gas composition enriched in concentration of the at least one component gas.