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:
Jun. 14, 2016
Filed:
Aug. 23, 2007
Takayuki Mori, Sagamihara, JP;
Mari Ono, Sagamihara, JP;
Takayuki Mori, Sagamihara, JP;
Mari Ono, Sagamihara, JP;
TOKYO ROKI CO., LTD., Yokohama-shi, Kanagawa, JP;
Abstract
A catalyst having superior heat resistance and being capable of efficiently removing a nitrogen oxide, a removing method using the same, an apparatus including the catalyst described above, and the like are provided. A complex metal oxide containing tungsten, zirconium, and cerium has superior heat resistance and is capable of efficiently removing a nitrogen oxide in the presence of ammonia, the content of cerium oxide and the content of tungsten oxide being 10 to 30 percent by weight and 5 to 14 percent by weight, respectively. Hence, a catalyst which includes a complex metal oxide containing tungsten oxide, zirconium oxide, and cerium oxide, in which the content of the cerium oxide and the content of the tungsten oxide are 10 to 30 percent by weight and 5 to 14 percent by weight, respectively, is effectively used to remove a nitrogen oxide.