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. 18, 2017
Filed:
Jun. 18, 2015
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Michel Molinier, Houston, TX (US);
Kevin J. Knob, Fairfield, CA (US);
Dennis J. Stanley, Houston, TX (US);
Terri S. Vander Pol, Baytown, TX (US);
Chunshe Cao, Shanghai, CN;
Xiaobo Zheng, Houston, TX (US);
Thierry LeFlour, Paris, FR;
Jacques Rault, Paris, FR;
Stephane Claudel, Verneuil sur Seine, FR;
Isabell Prevost, Rueil Malmaison, FR;
Jerome Pigourier, Meudon, FR;
Celia Fernandez, Paris, FR;
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
In a process for producing para-xylene, at least one feed comprising Caromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a Caromatic hydrocarbon-containing stream, a Caromatic hydrocarbon-containing stream and a Caromatic hydrocarbon-containing stream. At least part of the Caromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the Caromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.