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:
Dec. 15, 1981
Filed:
Jan. 08, 1981
Hiroshi Kudo, Yokohama, JP;
Yasuaki Ishida, Tokyo, JP;
Shikiho Itaya, Hiroshima, JP;
Ryoichi Yamamoto, Yamaguchi, JP;
Mitsui Engineering and Shipbuilding Co., Ltd., Tokyo, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Abstract
A catalytic reactor for reducing nitrogen oxide (NO.sub.x) contained in exhaust gas under the presence of ammonia is provided, wherein tubular catalyst units each being a ring shape in cross-section are disposed in spaced apart relationship from one another in the cross-section of the flow path of the exhaust gas in a manner that tubular axes thereof are in parallel with the direction of gas flow within a reaction vessel through which the exhaust gas containing nitrogen oxide (NO.sub.x) and ammonia flows, said catalyst units each being secured to the interior of the reaction vessel at least as two points in the longitudinal direction by support means.