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. 09, 2009
Filed:
May. 22, 2008
Edwin P. Boldingh, Arlington Heights, IL (US);
Antoine Negiz, Wilmette, IL (US);
Gregory F. Maher, Aurora, IL (US);
Paula L. Bogdan, Mount Prospect, IL (US);
Dean E. Rende, Arlington Heights, IL (US);
Edwin P. Boldingh, Arlington Heights, IL (US);
Antoine Negiz, Wilmette, IL (US);
Gregory F. Maher, Aurora, IL (US);
Paula L. Bogdan, Mount Prospect, IL (US);
Dean E. Rende, Arlington Heights, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-based agent. Such treatment reduces the amount of methane produced by metal hydrogenolysis in a transalkylation process wherein heavy aromatics like A+ are reacted with toluene to produce xylenes. Reduced methane production relative to total light ends gas production results in lower hydrogen consumption and lower reactor exotherms.