Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through immobilized liquid
Patent
1993-07-08
1995-03-07
Spitzer, Robert
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through immobilized liquid
95 50, 96 5, 96 8, 96 12, B01D 5322
Patent
active
053954262
ABSTRACT:
A device and method for removing, concentrating and analyzing airborne organic compounds. The device includes a nonporous membrane which contains a collection media. The liquid collection media typically includes a component which has a molecular weight that is too large to pass through transport corridors in the nonporous membrane and a component which has a molecular weight which is sufficiently small enough to pass through the transport corridors in the nonporous membrane and thereby forming a thin film on the exterior surface of the device. The collection media can consist of only components too large to pass through the membrane transport corridors. Organic contaminants are trapped in the thin film on the exterior surface of the device or the membrane and transported by concentration gradient diffusion forces into the bulk of the collection media within the nonporous membrane.
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Gibson Virginia L.
Huckins James N.
Petty Jimmie D.
Zajicek James A.
Koltos E. Philip
Spitzer Robert
The United States of America as represented by the Secretary of
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