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:
Dec. 21, 1976
Filed:
Oct. 30, 1972
Applicant:
Inventor:
David W Leyshon, Westport, CT (US);
Assignee:
Dorr-Oliver Incorporated, Stamford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01F / ; C01F / ; C01F / ;
U.S. Cl.
CPC ...
423167 ; 432 15 ; 432 58 ; 432 77 ; 423659 ; 2327 / ;
Abstract
Hot gases for fluidizing the preheat compartment of a multi-bed fluid bed reactor are cooled by injection of water, or cool air and water, to reduce scaling of the ducts, hot cyclone, hot windbox and the tuyeres in the constriction dome separating the hot windbox from the preheat compartment.