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. 27, 2019
Filed:
Feb. 26, 2015
Applicant:
Chevron U.s.a. Inc., San Ramon, CA (US);
Inventors:
Saleh Ali Elomari, Fairfield, CA (US);
Thomas Van Harris, Benicia, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 31/40 (2006.01); B01J 31/02 (2006.01); B01J 27/32 (2006.01); B01J 27/30 (2006.01); B01J 35/12 (2006.01); B01J 38/50 (2006.01); B01J 38/54 (2006.01); C01B 17/90 (2006.01); C07D 213/20 (2006.01);
U.S. Cl.
CPC ...
B01J 31/4092 (2013.01); B01J 27/30 (2013.01); B01J 27/32 (2013.01); B01J 31/0284 (2013.01); B01J 31/0288 (2013.01); B01J 31/0298 (2013.01); B01J 35/12 (2013.01); B01J 38/50 (2013.01); B01J 38/54 (2013.01); C01B 17/905 (2013.01); C07D 213/20 (2013.01); B01J 2231/12 (2013.01); B01J 2231/20 (2013.01); B01J 2231/4205 (2013.01); B01J 2231/44 (2013.01); B01J 2531/31 (2013.01); Y02P 20/584 (2015.11);
Abstract
We provide a process for regenerating a used acidic ionic liquid catalyst which has been deactivated by conjunct polymers in a reactor, by removing at least 57 wt % of the conjunct polymers originally present in the used acidic ionic liquid catalyst in a separate regeneration reactor, so as to increase the activity of the catalyst. We also provide a regenerated used acidic ionic liquid catalyst having increased activity.