Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Step of warning or decreasing hazard of process
Patent
1991-09-26
1993-07-20
Johnston, Jill A.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Step of warning or decreasing hazard of process
422 30, 422 34, 422126, 422175, 422181, 422206, 422187, 4232453, A61L 200, A61L 900
Patent
active
052290719
ABSTRACT:
A batch method and apparatus provides controlled release of gaseous air contaminants into the atmosphere through catalytic oxidation while minimizing both the energy required and the volume of waste gas exhausted into the atmosphere. The device has a recirculating gas stream driven by a recirculation fan which moves gas, normally and naturally present at start-up, through a bed of granular catalyst, in an oxidizer and into contact with the surface of a process-gas heater and back to the recirculation fan. The gaseous contaminants may be drawn into this system using a vacuum pump. Control of catalyst temperature is achieved based upon the novel system configuration, and without the introduction of dilution air, and the contaminant gas is introduced without controlling either flow rate or temperature.
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"Donaldson ETO-Abator System", Donaldson Company, Inc., Product Bulletin PB-ETO-001, 1988.
"Donaldson 125 CM ETO ABATOR", data sheets, Donaldson Company, Inc.
"ETO Abator-125 CFM, Outline", Donaldson Drawing No. 626P0038, dated Aug. 11, 1988, Donaldson Company, Inc.
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Bhat N.
Johnston Jill A.
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