Reduction purification method of nitrogen oxide-containing exhaust gas
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United States of America Patent
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Feb 29, 2000
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N/A
app pub date -
Dec 26, 1996
filing date -
Dec 26, 1995
priority date (Note) -
Expired
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Abstract
A reduction purification method of a nitrogen oxide-containing exhaust gas by contacting said nitrogen oxide-containing exhaust gas with a catalyst in an oxidative atmosphere in which an excess amount of oxygen is present and in the presence of at least one reducing agent selected from the group consisting of a hydrocarbon and an oxygen-containing organic compound, wherein said catalyst comprises an alumina having supported thereon (a) tin and (b) at least one selected from the group consisting of ruthenium, palladium, rhodium and indium.
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