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:
Nov. 08, 1983
Filed:
Jun. 21, 1982
Applicant:
Inventors:
Robert N Hall, Boulder, CO (US);
Franklin B Carlson, Broomfield, CO (US);
William J Thomson, Moscow, ID (US);
Assignee:
Tosco Corporation, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F03D / ;
U.S. Cl.
CPC ...
110347 ; 110263 ;
Abstract
A dual stage combustion system and process for achieving high fuel combustion efficiency and reduced nitric oxide emissions. Combustion is carried out in two stages. A first partial combustion carried out in an oxygen deficient atmosphere followed by a second complete carbon combustion in an oxidizing atmosphere. The second combustion step achieves complete fuel utilization, but generates a nitrogen oxide containing flue gas. The nitrogen oxide containing flue gas is passed to the first combustion step where it is removed by interaction with the partially combusted solids.