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:
Sep. 22, 2020
Filed:
Nov. 30, 2017
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
James M. Bell, Guildford, GB;
Dharmesh C. Panchal, Surbiton, GB;
Assignee:
UOP LLC, Des Plaines, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 11/18 (2006.01); B01J 8/18 (2006.01); B01J 8/00 (2006.01);
U.S. Cl.
CPC ...
C10G 11/182 (2013.01); B01J 8/0055 (2013.01); B01J 8/1845 (2013.01); B01J 8/1872 (2013.01); B01J 8/1881 (2013.01); C10G 2300/1037 (2013.01); C10G 2300/4093 (2013.01); C10G 2300/701 (2013.01);
Abstract
A process and apparatus for catalytically cracking fresh heavy hydrocarbon feed to produce cracked products is disclosed. A fraction of the cracked products can be obtained to re-crack it in a downer reactor. The downer reactor may produce high selectivity to light olefins. Spent catalyst from both reactors can be regenerated in the same regenerator.