Patent ID: 7303681
Filing Date: 2007-12-04
Classification: B01D,B01J,C10G

Abstract:
1. A method for separating a desired species from a feed stream comprising: (a) conducting the feedstream into a retentate zone containing a dynamic membrane comprising (i) an adsorbent layer in fluid contact with the retentate zone, the adsorbent layer being selective for adsorption of the desired species, and (ii) a thin film polymer membrane, the thin film polymer membrane being selective for permeating the desired component and comprising an upstream side in contact with the adsorbent layer and a downstream side; (b) heating the feedstream in the retentate zone; (c) heating the permeate stream in the permeate zone with a hot media; (d) adsorbing the desired species onto the adsorbent layer and permeating the desired species through the thin film polymer membrane to the downstream side; and (e) conducting the desired species away from a permeate zone in fluid contact with the downstream side of the thin film polymer membrane.