Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Reexamination Certificate
2010-02-17
2011-10-11
Nguyen, Cam N. (Department: 1736)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
C423S239100, C502S066000, C502S074000, C502S087000, C502S261000, C502S262000, C502S332000, C502S333000, C502S334000, C502S339000, C502S349000, C502S350000, C502S351000, C502S355000, C502S415000, C502S439000, C502S527190
Reexamination Certificate
active
08034311
ABSTRACT:
An oxidation catalyst that efficiently promotes oxidation of NO to NO2even in a low temperature range, and an exhaust-gas purification system and method that efficiently removes exhaust-gas components even in a low temperature range are provided. This invention provides an oxidation catalyst comprising platinum and palladium as catalytically active components, which promotes oxidation of nitrogen monoxide to nitrogen dioxide, wherein the oxidation catalyst comprises 1 to 55 parts by weight of the palladium relative to 100 parts by weight of the platinum.
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Ikeda Masanori
Kato Naohiro
Buchanan & Ingersoll & Rooney PC
ICT Co., Ltd.
International Catalyst Technology Inc.
Nguyen Cam N.
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