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, 1986
Filed:
Apr. 08, 1985
Applicant:
Inventors:
Frederick J Krambeck, Cherry Hill, NJ (US);
Carmo J Pereira, Columbia, MD (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 74 ; 208 76 ; 208113 ; 208155 ; 208160 ; 208164 ;
Abstract
A novel FCC method and apparatus, wherein a fresh hydrocarbon feed of relatively poor crackability is fed to one riser of a two riser system. The spent catalyst from the other of the two risers is fed to the inlet of the first riser to produce relatively mild cracking conditions. Improved total gasoline plus distillate yields are achieved. The novel two riser system facilitates heat balancing of the system.