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:
Aug. 18, 1998
Filed:
Jul. 10, 1996
Applicant:
Inventors:
Richard S Boswell, Magnolia, TX (US);
Thomas D Farraro, Lake Charles, LA (US);
Assignee:
Citgo Petroleum Corporation, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10B / ; C10B / ;
U.S. Cl.
CPC ...
201 39 ; 201-1 ; 201 39 ; 202227 ;
Abstract
A method of controlling the rate of quench of coke in a coke drum to reduce deterioration of the coke drum sidewall in which water is admitted into the coke drum filled with hot coke to cool the coke includes the steps of determining the stress imposed on the coke drum sidewall by means of at least one strain gauge affixed to the sidewall and controlling the rate of admission of water into the coke drum in response to the determined stress so that the rate of water admission keeps the stress below a preselected maximum level.