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:
Jul. 19, 1977
Filed:
Oct. 28, 1975
Applicant:
Inventors:
Thomas C Readal, Pittsburgh, PA (US);
Joel D McKinney, Pittsburgh, PA (US);
Robert A Titmus, Pittsburgh, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; B01J / ;
U.S. Cl.
CPC ...
208120 ; 208113 ; 252416 ; 252419 ;
Abstract
An improved hydrocarbon catalytic cracking process which comprises determining the concentrations of carbon dioxide and carbon monoxide in the gaseous effluent from the catalyst regeneration zone and adjusting the rate of addition of a selective treating agent to the hydrocarbon feed to the cracking zone so as to maintain a volume ratio of carbon dioxide to carbon monoxide of at least 2.2 in said effluent.