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:
Jul. 23, 2019
Filed:
Jul. 29, 2016
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Meha Rungta, Houston, TX (US);
Jeevan S. Abichandani, Houston, TX (US);
Dana L. Pilliod, League City, TX (US);
Robert G. Tinger, Friendswood, TX (US);
Anthony Go, Houston, TX (US);
Ke Zhang, Medford, MA (US);
Sankar Nair, Atlanta, GA (US);
Jason Gee, Houston, TX (US);
David Sholl, Marietta, GA (US);
EXXONMOBIL CHEMICAL PATENTS INC., Baytown, TX (US);
GEORGIA TECH RESEARCH CORPORATION, Atlanta, GA (US);
Abstract
Para-xylene is separated from a mixture of C8 aromatics using a simulated moving bed (SMB) adsorption process, wherein a MOF is used as an adsorbent and an alkane or alkene having 7 or less carbon atoms, such as hexane or heptane is used as desorbent. Because of the difference in boiling points of a hexane or heptane desorbent as compared to conventional desorbents such as toluene or para-diethylbenzene, less energy is required to separate hexane or heptane from C8 aromatics by distillation than the energy required to separate toluene or diethylbenzene from C8 aromatics by distillation.