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:
Oct. 28, 2003
Filed:
Mar. 08, 2001
Applicant:
Inventors:
Satoshi Wakasa, Matsuyama, JP;
Noboru Takubo, Matsuyama, JP;
Yukihiro Isshiki, Matsuyama, JP;
Kouichi Masuda, Matsuyama, JP;
Nobuyuki Ishizaki, Brantford, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 2/120 ;
U.S. Cl.
CPC ...
C01B 2/120 ;
Abstract
A method for controlling a NOx removal system in which reductant supply is adjusted according to combustion level in a boiler ( ) in which the combustion level is controlled in multiple stages. For a decrease of the combustion level, the reductant supply is kept lower than a level corresponding to a changeover-target combustion level for a period of a set time from the changeover of the combustion level. Thus, when the reductant supply is changed over in response to a changeover of combustion level, the reductant can be prevented from flowing outside as it is unreacted.