Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Patent
1995-09-06
1998-11-10
Jenkins, Daniel J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
204 24, B01J 1912
Patent
active
058358404
ABSTRACT:
A system to disinfect and detoxify indoor duct-transported air to improve the quality thereof. A reactor is provided across a duct or housing and consists of a coated surface along the airstream path on which a semiconductor catalyst such as TiO.sub.2 has been coated. Ultraviolet lamps are installed in the reactor such that the catalyst is exposed to UV rays as the air passes over it. As the photons of ultraviolet light are absorbed on the TiO.sub.2 catalyst in the presence of water molecules in the air, hydroxyl radicals are created, which, in turn, cause the destruction of chemical and microbiological contaminants in the air. A relative humidity of 50%, under specific conditions of residence time provides an efficient number of water molecules to cause inactivation of microorganisms. The catalyst may be fixed on the matrix or on the surface of the duct as long as the ultraviolet light is incident on the catalyst as the air moves across it.
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Jenkins Daniel J.
Universal Air Technology
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