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:
Oct. 09, 2018
Filed:
Dec. 28, 2015
Applicants:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Inventors:
John D. Ou, Houston, TX (US);
Jeevan S. Abichandani, Houston, TX (US);
Yoshiaki Kawajiri, Nagoya, JP;
Siwei Guo, Atlanta, GA (US);
Assignees:
EXXONMOBIL CHEMICAL PATENTS INC., Baytown, TX (US);
GEORGIA TECH RESEARCH CORPORATION, Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C 15/08 (2006.01); C07C 7/13 (2006.01); C07C 15/073 (2006.01); B01D 15/18 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
C07C 15/08 (2013.01); B01D 15/1828 (2013.01); C07C 7/04 (2013.01); C07C 7/13 (2013.01); C07C 15/073 (2013.01);
Abstract
A process is described for separating paraxylene from a multicomponent fluid mixture of C8 aromatics. A mixture of C8 aromatics is fed to a simulated moving-bed adsorptive apparatus. The location of the feed to the apparatus is moved at set intervals. The rate of flow of feed to the apparatus is varied during each interval to enhance the separation of paraxylene from the multicomponent mixture.