Process for reducing emissions from industrial sterilizers

Details Process for reducing emissions from industrial sterilizers Process for reducing emissions from industrial sterilizers

1990-08-07

1991-12-03

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 71, 55 74, 55 84, B01D 5322

Patent

active

050696866

ABSTRACT:
A process for treating gas streams containing a sterilant gas and a diluent gas, such as sterilizer exhaust streams. The process involves a sterilant removal step and a diluent removal step. The sterilant removal step can be absorption, catalytic oxidation or some other chemical reaction. The diluent removal step includes a membrane separation step, and may include a condensation step. The permselective membranes used for the membrane separation step are typically selective for the diluent gas over other gases in the stream. The process removes essentially all the sterilant present in the feed stream, and typically removes 90% or more of the diluent. The process is particularly useful for treating ethylene oxide/CFC-12 mixtures.

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