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:
May. 30, 2000
Filed:
Feb. 16, 1999
Applicant:
Inventors:
Jean-Xavier Morin, Neuville Aux Bois, FR;
Michel Vandycke, Gambais, FR;
Corinne Beal, Voisins le Bretonneux, FR;
Assignee:
Alstom Energy Systems SA, Velizy, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F22B / ;
U.S. Cl.
CPC ...
122 / ; 110245 ; 110345 ; 422172 ;
Abstract
The circulating fluidized bed boiler comprises a combustion hearth and a separator cyclone interconnected by a duct which extends along a longitudinal axis and which channels a flow of particles and gas containing nitrogen oxides. It also includes means for injecting into the flow a reagent for reducing nitrogen oxides. Said means comprises at least a first injection tube disposed in a setback of the top portion of the combustion hearth which extends over the duct so as to inject the reagent along the longitudinal axis of the duct in the same direction as the flow.