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. 04, 2011
Filed:
Sep. 22, 2005
Yoshiaki Obayashi, Hiroshima, JP;
Toshiyuki Onishi, Nagasaki, JP;
Kozo Iida, Hiroshima, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The invention provides a discharge gas treatment catalyst which can effectively decreases NOand SOcontained in a discharge gas. The discharge gas treatment catalyst, for removing nitrogen oxide and sulfur trioxide from a discharge gas, includes a carrier which is formed of titania-tungsten oxide and which carries ruthenium, and a titania-tungsten oxide-based NOremoval catalyst serving as a substrate which is coated with the carrier. When a discharge gas to which ammonia has been added and which contains SOand NOis brought into contact with the catalyst, decomposition of ammonia is suppressed by ruthenium, and reduction of SOand NOcontained in the discharge gas is promoted, whereby SOconcentration and NOconcentration can be further decreased.