Catalyst carrier and method of producing same
AssigneeIbiden Co., Ltd.
InventorsKazushige Ohno, Teruo Komori, Akira Hasegawa, Noriyoshi Kakuta
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Abstract
A catalyst carrier which comprises particles of a silicon-containing ceramic material. Each of these particles is covered by a film of alumina on which a noble metal is carried.
Claims32
A catalyst which comprises particles of a silicon-containing ceramic material as a carrier, wherein each of these particles has a layer of silicon oxide (SiO2) on a surface thereof, said silicon oxide layer being covered by a film of alumina, on which film a noble metal is carried as an active catalyst.
A catalyst which comprises particles of a silicon-containing ceramic material as a carrier, wherein each of these particles has a layer of silicon oxide (SiO2) on a surface thereof, said silicon oxide layer being covered by a film of alumina, on which film an active catalyst is carried, said active catalyst being capable of oxidizing carbon monoxide and hydrocarbons contained in exhaust gas and reducing nitrogen oxides.
A catalyst carrier comprising a silicon-containing ceramic support for carrying an active catalyst that comprises at least one of a noble metal and a catalyst that is capable of oxidizing carbon monoxide and hydrocarbons contained in exhaust gas and reducing nitrogen oxides, wherein the support comprises particles and each of these particles has a layer of silicon oxide (SiO2) on a surface thereof, said silicon oxide layer being covered by a film of alumina.
Dependencies are inferred from the claim text.