Process for the separation of gaseous mixtures used in steriliza

Details Process for the separation of gaseous mixtures used in steriliza Process for the separation of gaseous mixtures used in steriliza

1984-04-30

1985-11-26

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 51, 55 89, 55 94, 422 34, 549541, B01D 5314

Patent

active

045552517

ABSTRACT:
Processes and apparatus for the separation of gaseous mixtures used in sterilization processes are disclosed, particularly in which the gaseous mixtures include ethylene oxide and a relative inert secondary gas component, such as various chlorofluorocarbons. The processes disclosed include providing water as a solvent for the ethylene oxide, mixing the gaseous mixture with the water to produce a liquid phase comprising the ethylene oxide at least partially dissolved in the water, and the gas phase comprising the secondary gaseous component which is less soluble in the water than the ethylene oxide, removing the gas phase from the liquid phase for further processing, separating the ethylene oxide from the water in the liquid phase, and recycling the water for subsequent use as solvent. The apparatus disclosed include a water tank, a pump for mixing the gaseous mixture with the water to produce a liquid phase of the ethylene oxide at least partially dissolved in the water, and a gas phase, a separating tank for separating the gas and liquid phase, a stripper for separating the ethylene oxide from the water, and a recycle circuit for recycling the water back to the water tank for further use as solvent.

REFERENCES:
patent: 3165539 (1965-01-01), Lutz
patent: 3745092 (1973-07-01), Vanderwater
patent: 3766714 (1973-10-01), Cunningham et al.
patent: 3856484 (1974-12-01), Cocuzza et al.
patent: 3948621 (1976-04-01), Cocuzza et al.
patent: 3989461 (1976-11-01), Skocypec et al.
patent: 4130393 (1978-12-01), Fox

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