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. 19, 1980
Filed:
Jan. 15, 1979
Applicant:
Inventors:
Benjamin Gross, Cherry Hill, NJ (US);
Jong W Lee, Cherry Hill, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; B01J / ;
U.S. Cl.
CPC ...
208120 ; 208 72 ; 208 74 ; 208 75 ; 208 78 ;
Abstract
A riser cracking operation is described for the production of gasoline and distillate material by the combination of cracking fresh gas oil charged to the base of a riser cracking zone for admixture with freshly regenerated catalyst to form a suspension thereof at an elevated cracking temperature, a second hydrocarbon fraction of more difficult cracking characteristics is charged to the suspension rising in the riser cracking zone at a point selected from 10 to about 30 feet above the riser bottom and the riser inlet temperature is restricted to be within the range of 900.degree. to 1000.degree. F.