EXHAUST GAS PURIFICATION CATALYST WITH HIGH RESISTANCE TO SILICON POISONING
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United States of America Patent
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Nov 12, 2015
app pub date -
Dec 25, 2013
filing date -
Dec 25, 2012
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Abstract
A catalyst composition of excellent silicon-resistant performance, and a catalyst containing the catalyst composition are provided. The catalyst composition is one for purifying an exhaust gas containing an organic compound, the catalyst composition comprising at least one inorganic oxide (component 1) selected from the group consisting of alumina, zirconia, titania, silica, ceria, and ceria-zirconia, each having a noble metal supported thereon; β zeolite (component 2) having supported thereon at least one metal selected from the group consisting of Fe, Cu, Co and Ni; and a Pt—Fe composite oxide (component 3).
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