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:
Sep. 17, 1991
Filed:
Dec. 27, 1990
Applicant:
Inventors:
John E Hofmann, Naperville, IL (US);
William H Sun, Aurora, IL (US);
Assignee:
Nalco Fuel Tech, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23J / ; F23J / ;
U.S. Cl.
CPC ...
110345 ; 110211 ; 110212 ; 422182 ; 423235 ; 122 / ;
Abstract
A process and apparatus is presented for the reduction of nitrous oxide in the effluent from the combustion of a carbonaceous fuel. The process comprises raising the temperature of the effluent to a temperature of at least about 1700.degree. F. The apparatus utilized is a heating means which is disposed in a boiler at a location where the effluent is at a temperature of less than about 1700.degree. F.