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:
Jun. 13, 2023
Filed:
Jan. 11, 2021
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Oluwagbogo Adebayo-Ige, Houston, TX (US);
Robert G. Tinger, Friendswood, TX (US);
Todd E. Detjen, Bellaire, TX (US);
Bhupender S. Minhas, Bridgewater, NJ (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/12 (2006.01); C07C 15/08 (2006.01); B01D 69/14 (2006.01); B01D 61/38 (2006.01); B01D 15/18 (2006.01);
U.S. Cl.
CPC ...
C07C 7/12 (2013.01); B01D 15/1821 (2013.01); B01D 61/38 (2013.01); B01D 69/142 (2013.01); C07C 15/08 (2013.01);
Abstract
A process and system for separating paraxylene from a mixture of paraxylene, metaxylene, orthoxylene, and ethylbenzene in a simulated moving bed apparatus using a membrane to separate non-aromatics from a desorbent stream. The lower nonaromatics content in the desorbent improves paraxylene product purity, increases paraxylene production at the same desorbent rate, reduces the desorbent rate, and/or reduces energy consumption in the product tower.