Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through immobilized liquid
Patent
1997-03-26
2000-12-05
Spitzer, Robert H.
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through immobilized liquid
95 51, 96 5, 96 8, B01D 5322
Patent
active
061560960
ABSTRACT:
A method of separating at least one gaseous component from a feed comprising a mixture of gases using a liquid membrane barrier and a sweep fluid is disclosed that includes selecting a sweep gas or a sweep liquid membrane and providing a treatment zone in a treatment chamber having a plurality of hydrophobic microporous hollow fibers, the treatment chamber having opposed end walls with ports including feed and membrane inlets and a sweep outlet at one end and a sweep inlet and a feed and membrane outlets at the opposed end and a plurality of hydrophobic elongated microporous hollow fibers extending between the feed and sweep inlet ports and feed and sweep outlet ports respectively and arranged for counter-current flow of feed gas and sweep fluids therethrough. A liquid membrane, a feed gas and a sweep fluid are delivered into each respective inlet port under conditions wherein the static pressure in the feed is higher than in the sweep and wherein the static pressure in the membrane liquid is maintained at a level which is substantially higher than the pressure within either of the hollow fibers containing the feed gases or sweep fluids.
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Applied Membrane Technology, Inc.
Spitzer Robert H.
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