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. 13, 2021
Filed:
Jul. 18, 2018
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Zhihao Fei, Naperville, IL (US);
Lisa M. Wolschlag, Aurora, IL (US);
Brian W. Hedrick, Oregon, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J 38/26 (2006.01); B01J 38/34 (2006.01); B01J 38/04 (2006.01); B01J 8/34 (2006.01); B01J 8/00 (2006.01); B01J 8/26 (2006.01); B01J 8/28 (2006.01); B01J 38/30 (2006.01); C10G 11/18 (2006.01); B01J 29/90 (2006.01);
U.S. Cl.
CPC ...
B01J 38/26 (2013.01); B01J 8/003 (2013.01); B01J 8/008 (2013.01); B01J 8/0025 (2013.01); B01J 8/0055 (2013.01); B01J 8/0065 (2013.01); B01J 8/26 (2013.01); B01J 8/28 (2013.01); B01J 8/34 (2013.01); B01J 38/04 (2013.01); B01J 38/30 (2013.01); B01J 38/34 (2013.01); C10G 11/182 (2013.01); B01J 29/90 (2013.01); B01J 2208/00752 (2013.01); B01J 2208/00769 (2013.01); B01J 2208/00902 (2013.01); B01J 2208/00938 (2013.01); B01J 2208/00991 (2013.01); C10G 2300/207 (2013.01); C10G 2300/708 (2013.01);
Abstract
A counter-current catalyst regenerator with at least two stages of counter-current contact is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits upward movement of catalyst to mitigate back mixing and approximate true counter-current contact and efficient combustion of coke from catalyst.