Patent ID: 6797038
Filing Date: 2004-09-28
Classification: B01D,B01J,C07C,Y10S

Abstract:
A process for separating ethylene, propylene or a mixture thereof from a mixed gas comprising the steps of:(a) providing an adsorbent comprising a silver or copper compound impregnated on a substrate consisting of mesopores selected from the group consisting of mesoporous silica and mesoporous alumina, the silver or copper compound being present in the adsorbent in an amount of 1 to 70 wt % and the substrate being in the adsorbent in an amount of 30 to 99 wt %; (b) passing a mixed gas containing olefin molecules, including the ethylene propylene or mixture thereof, and a component selected from the group consisting of H, N2, Ar, He, CH4, C2H6, C3H8, CO, CO2 and a mixture thereof; purging the adsorbent bed with an olefin; and (c) recovering adsorbed ethylene and/propylene.