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:
Mar. 05, 1991
Filed:
Mar. 07, 1990
Applicant:
Inventors:
John E Hofmann, Stamford, CT (US);
Barry N Sprague, Bethlehem, CT (US);
William H Sun, Wallingford, CT (US);
Assignee:
Fuel Tech, Inc., Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423235 ;
Abstract
A process is presented for the reduction of nitrogen oxides in the effluent from the combustion of a carbonaceous fuel while reducing the generation of nitrous oxide. The process comprises introducing a treatment agent comprising ammonium carbamate into the effluent in an amount effective to substantially avoid the presence of nitrous oxide.