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:
Apr. 20, 2010
Filed:
Dec. 28, 2006
Nobuyasu Kanda, Tokyo, JP;
Kimihiko Sugiura, Tokyo, JP;
Shoichi Ibaragi, Ichihara, JP;
Youichi Takahashi, Ichihara, JP;
Yutaka Tsukui, Ichihara, JP;
Nobuyasu Kanda, Tokyo, JP;
Kimihiko Sugiura, Tokyo, JP;
Shoichi Ibaragi, Ichihara, JP;
Youichi Takahashi, Ichihara, JP;
Yutaka Tsukui, Ichihara, JP;
Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, JP;
Abstract
A denitration process for removing nitrogen oxides contained in low-temperature exhaust gas at a high denitration rate; namely, a denitration process for reductively removing nitrogen oxides contained in an exhaust gas (x) containing nitrogen monoxide and sulfur dioxide. The process comprises a preliminary stepof partially oxidizing nitrogen monoxide in the exhaust gas to form nitrogen dioxide, a radical formation stepof adding a nitrogen compound and a hydrocarbon compound to a high-temperature zoneto form amine radicals (r), and a denitration stepof mixing the amine radicals (r) with the pretreated gas (p) containing nitrogen monoxide and nitrogen dioxide that was discharged from the preliminary step. As a result, nitrogen oxides in the exhaust gas (x) are reductively decomposed.