Engelhard Corporation

Leonard M Quick

Robert J Farrauto

Jeffrey Barmont Hoke

Kenneth Edwin Voss

Jennifer S Feeley

Matthew P Larkin

Dianne O Simone

Robert E Whiteley

Martha M Hamil

A method for treating cooking fumes to oxidize oxidizeable particulate and gaseous components thereof includes contacting the fumes with a catalytic material containing ceria and alumina each having a BET surface of at least about 10 m.sup.2 /g, for example, ceria and activated alumina in a weight ratio of from about 1.5:1 and 1:1.5 and a BET surface area of from about 25 m.sup.2 /g to 200 m.sup.2 /g. Optionally, a catalytic metal component such as platinum or palladium may be included in the catalytic material. The foodstuffs cooking fumes are contacted with the catalyst composition (22 or 40) at a temperature of 200.degree. C. to 600.degree. C. to promote the oxidation of both particulate (atomized) animal and/or vegetable oils and fats and oxidizeable gas phase components of the fumes. Optionally, a separate, supplemental gas phase oxidation catalyst (42) may be used in conjunction with and downstream of the above-described catalyst (40) to provide a two-catalyst system for treating cooking fumes.

System and method for abatement of food cooking fumes

A catalyst member for use in processes for the catalytic combustion of gaseous carbonaceous fuels is made from a stabilized carrier having a plurality of gas flow passages extending therethrough defined by channel walls and a catalyst material disposed on the channel walls, wherein the carrier is stabilized against interaction with the catalyst material. The stabilized carrier may be prepared from a monolith comprising silica, magnesia and alumina that has a coating of alumina on the channel walls and by subjecting the coated monolith to stabilizing conditions. The stabilizing conditions may include exposure to high temperature steam.

Stabilized catalyst carrier and improved carrier configuration for

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Bridgewater, NJ, United States of America

Leonard M Quick