Gas-solid photocatalytic oxidation of environmental pollutants

Patent · Tue Sep 03 04:00:00 EDT 1991

OSTI ID:5787123

Raupp, G B; Dibble, L A

This patent describes the method of removing halogenated and non-halogenated volatile and non-volatile organic contaminants from a gaseous stream. It comprises mixing a gaseous oxygen bearing substance with the contaminated gaseous stream; contacting the contaminated gaseous stream and gaseous oxygen bearing substance mixture with a solid catalyst; and exposing the solid catalyst and contacted contaminated gaseous stream and gaseous oxygen bearing substance mixture to UV light having a wave length not greater than approximately 600 nm, to initiate under reaction conditions preselected to prevent formation of a liquid phase, a gas/solid photocatalytic reaction to convert the halogenated and non-halogenated organic contaminants, volatile and non-volatile, into primarily H{sub 2}O and CO{sub 2} and HX, where X is selected from the group consisting of chlorine, bromine and iodine.

• Assignee: Arizona Borad of Regents, Arizona State Univ., Tempe, AZ (United States)
• Patent Number(s): US 5045288; A
• Application Number: PPN: US 7-407573
• OSTI ID: 5787123
• Country of Publication: United States
• Language: English

Related Subjects

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14 SOLAR ENERGY
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Photobiological
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CATALYSIS
CATALYSTS
CHEMICAL REACTIONS
CONVERSION
ENERGY CONVERSION
GASEOUS WASTES
MANAGEMENT
ORGANIC WASTES
PHOTOCHEMICAL REACTIONS
PROCESSING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES