B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/22 (2006.01) B01D 53/26 (2006.01)
Patent
CA 2212835
A gas-phase countercurrent sweep stream having a low partial pressure of a given vapor to be selectively removed from a mixture of condensable vapors is swept past the permeate side of a selectively permeable membrane, thereby rendering unnecessary the application of a vacuum to the permeate side of the membrane and at the same time maintaining a chemical potential gradient of the vapor to be removed across the membrane.
Friesen Dwayne T.
Mccray Scott B.
Newbold David D.
Ray Roderick J.
Bend Research Inc.
Oyen Wiggs Green & Mutala Llp
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