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. 02, 2022
Filed:
Dec. 05, 2018
Applicant:
Ineos Us Chemicals Company, Naperville, IL (US);
Inventor:
Brian Benjamin, Chicago, IL (US);
Assignee:
INEOS US CHEMICALS COMPANY, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/00 (2006.01); B01D 3/14 (2006.01); B01D 9/00 (2006.01); B01D 53/047 (2006.01); C07C 5/27 (2006.01); C07C 7/12 (2006.01); C07C 7/14 (2006.01);
U.S. Cl.
CPC ...
C07C 7/005 (2013.01); B01D 3/143 (2013.01); B01D 9/0004 (2013.01); B01D 53/047 (2013.01); C07C 5/277 (2013.01); C07C 7/12 (2013.01); C07C 7/14 (2013.01); B01D 2009/0086 (2013.01); B01D 2253/116 (2013.01); B01D 2257/7027 (2013.01);
Abstract
A method for the recovery paraxylene with reduced crystallization. Paraxylene is recovered from a mixture of C8 aromatic hydrocarbons in a pressure swing adsorption zone and a crystallization zone. The invention provides for lower throughput through the crystallization zone, resulting in lower capital costs, reduced electricity in operating separation equipment, as well as reduced refrigeration duty.