The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2008
Filed:
Nov. 18, 2003
Takeshi Matsumoto, Utsunomiya, JP;
Takao Kobayashi, Yokohama, JP;
Takuji Nakane, Himeji, JP;
Takahiro Uno, Paducah, KY (US);
Makoto Horiuchi, Himeji, JP;
Takeshi Matsumoto, Utsunomiya, JP;
Takao Kobayashi, Yokohama, JP;
Takuji Nakane, Himeji, JP;
Takahiro Uno, Paducah, KY (US);
Makoto Horiuchi, Himeji, JP;
ICT Co., Ltd., Osaka, JP;
International Catalyst Technology Inc., Auburn Hills, MI (US);
Abstract
An exhaust gas purifying catalyst contains copper oxide, ZSM-5 and/or zeolite β, and an oxide of magnesium and/or calcium is further added thereto. A process for purifying an exhaust gas using such a catalyst is also included. By using the catalyst, NOx in an exhaust gas containing much oxygen such as exhaust gas of diesel engines can be efficiently removed and oxidation of SOunder high-temperature conditions can be suppressed.