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. 29, 2008
Filed:
Jun. 28, 2006
Edward M. Casey, Mount Prospect, IL (US);
Patrick J. Silady, Niles, IL (US);
Antoine Negiz, Wilmette, IL (US);
Gregory R. Werba, Arlington Heights, IL (US);
Edward M. Casey, Mount Prospect, IL (US);
Patrick J. Silady, Niles, IL (US);
Antoine Negiz, Wilmette, IL (US);
Gregory R. Werba, Arlington Heights, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove Cnaphthenes. The processes of this invention include a transalkylation section and a disproportionation section in the benzene and toluene-containing feed is directly provided to the transalkylation section and in which a benzene recycle loop in the transalkylation section isolates the disproportionation section from Cnaphthenes.