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. 30, 2009
Filed:
Jun. 21, 2006
Applicants:
Leo Bresler, Northbrook, IL (US);
Robert B. Larson, Chicago, IL (US);
Inventors:
Leo Bresler, Northbrook, IL (US);
Robert B. Larson, Chicago, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/27 (2006.01); C07C 4/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention is drawn to a process for producing and recovering one or more high-purity xylene isomers from a feed stream having a substantial content of Cand heavier hydrocarbons. The feed stream is processed to de-ethylate heavy aromatics, fractionated and passed to a circuit comprising C-aromatic isomer recovery and isomerization to recover the high-purity xylene isomer with lowered energy costs.