Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Patent
1992-03-20
1997-12-16
Straub, Gary P.
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
95 48, 95 50, B01D 5322
Patent
active
056980116
ABSTRACT:
A process for separating the components of a gas mixture, including a sterilant gas and a diluent gas is disclosed. The gas mixture is fed to a membrane separation unit within which a perm-selective membrane is located which allows migration of diluent gas and sterilant gas at different rates. Both sterilant-rich and diluent-rich gas streams are withdrawn from the membrane separation unit and optionally recovered or further processed to a less hazardous compound. The process may be utilized to separate and treat the constituents of the exhaust gases from a chemical sterilization process of which the common components are olefin oxides such as ethylene oxide as a sterilant and chlorofluorocarbons (freon) such as dichlorodifluoromethane (CFC-1) as a diluent.
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Chung Hoo Young
Miller, III Stanley B.
Monson Donald R.
Walsh Timothy J.
Donaldson & Company, Inc.
Straub Gary P.
Vanoy Timothy C.
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