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US 9,040,007 B2Granted
Gas treatment by catalytic ozone oxidation
AssigneeCity University of Hong Kong
InventorsKwan San Hui, Kwok Leung Tsui, Man On Fu
Life of this patent
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Abstract
In one embodiment, a catalyst for ozone oxidation of pollutant components dispersed in a gas is provided. The ozone oxidation catalyst has a porous body formed from a metal body, a ceramic, or polymeric fibers coated with metal. A catalytic noble metal composition is deposited on the surface of the porous body. The catalytic noble metal composition is formed from particles of a noble metal supported by a mesoporous molecular sieve.
Claims20
A method for removing volatile organic compound from a gas, comprising:
- adding ozone to a gas comprising one or more volatile organic compounds forming a gas flow containing the one or more volatile organic compounds and ozone;
- and
- passing the gas flow over a filter comprising an ozone oxidation catalyst including a porous body having a surface and a catalytic noble metal composition deposited on the surface of the porous body, the catalytic noble metal composition comprising a mesoporous molecular sieve support and a noble metal.
An apparatus, comprising:
- a mixing component configured to add ozone to a gas comprising one or more volatile organic compounds forming a gas flow comprising the one or more volatile organic compounds and the ozone;
- and
- a filtration component configured to direct the gas flow in a direction of a filter comprising an ozone oxidation catalyst comprising a porous body having a surface and a catalytic noble metal composition deposited on the surface of the porous body, wherein the catalytic noble metal composition comprises a mesoporous molecular sieve support and a noble metal.
A system, comprising:
- means for adding ozone to a gas comprising one or more volatile organic compounds forming a gas flow comprising the one or more volatile organic compounds and the ozone;
- and
- means for passing the gas flow toward a filter comprising an ozone oxidation catalyst including a porous body having a surface and a catalytic noble metal composition deposited on the surface of the porous body, the catalytic noble metal composition comprising a mesoporous molecular sieve support and a noble metal.
Dependencies are inferred from the claim text.