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:
Apr. 27, 1993
Filed:
Jul. 12, 1991
Applicant:
Inventors:
Paul J Betts, Rockville Centre, NY (US);
Frank M Buyan, Yardley, PA (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ; C10G / ;
U.S. Cl.
CPC ...
208113 ; 208 / ; 208157 ;
Abstract
A process and apparatus for fluidized catalytic cracking of heavy oils is disclosed. The long transfer line connecting the catalytic cracking reactor to the main fractionator is modified by incorporation of a quench zone, of enlarged cross sectional area, where liquid products are recycled from the main fractionator and injected into the transfer line, without wetting the walls of the transfer line near the reactor outlet. Quenching hot cracked products from the FCC reactor in the transfer line, improves yields, and permits higher catalytic cracking reactor temperatures.