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:
Jan. 14, 1992
Filed:
Apr. 20, 1990
Jun Izumi, Akunoura, JP;
Akinori Yasutake, Akunoura, JP;
Kazuaki Oshima, Tokyo, JP;
Seiichi Tanabe, Tokyo, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A self-reactivating denitrating method and equipment in which the exhaust gas from the combustor flows and goes through an adsorbing catalyst tower filled with Cu(II) exchangeable high silica zeolite at a temperature of normal to 750.degree. C. to let NOx contained in the exhaust gas be adsorbed in the zeolite and decomposed into N.sub.2 and O.sub.2 resulting in achievement of cleaning the exhaust gas and then the zeolite saturated with NOx is put in touch countercurrently with air for combustion to let the adsorbed NOx be desorbed to reactivate Cu(II)exchangeable high silica zeolite and, at the same time, the air for combustion containing the adsorbed NOx is sent into the furnace of the combustor to decompose a part of NOx into N.sub.2 and O.sub.2 under an interfurnace combustion atmosphere.