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. 16, 1995
Filed:
Jan. 07, 1994
Applicant:
Inventors:
John J Lewnard, Emmaus, PA (US);
Tsun-Chiu R Tsao, Allentown, PA (US);
Alan Anderson, Modesto, CA (US);
Michael Bryant, Stockton, CA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23G / ;
U.S. Cl.
CPC ...
110222 ; 110245 ; 122 / ;
Abstract
A process is set forth for directly controlling the quantity and particle size distribution of the solid inventory inside a circulating fluidized bed combustor. A portion of the bed ash is withdrawn from the combustor as bottom ash. The particle size distribution of the stream is adjusted, such as by a hammermill, to a specified distribution. Finally, a portion of the adjusted ash is re-injected into the combustor. The process may be facilitated by size classifying the bottom ash prior to size reduction.