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:
Sep. 18, 2007
Filed:
Jul. 29, 2004
Brenda A. Raich, Annandale, NJ (US);
Robert A. Crane, Hellertown, PA (US);
Christine N. Elia, Bridgewater, NJ (US);
Teresa A. Jurgens-kowal, Seabrook, TX (US);
Gary D. Mohr, Houston, TX (US);
David L. Stern, Asbury, NJ (US);
Brenda A. Raich, Annandale, NJ (US);
Robert A. Crane, Hellertown, PA (US);
Christine N. Elia, Bridgewater, NJ (US);
Teresa A. Jurgens-Kowal, Seabrook, TX (US);
Gary D. Mohr, Houston, TX (US);
David L. Stern, Asbury, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A catalyst system that exhibits a ratio of ethylene saturation to aromatics ring saturation of greater than 3,500. The catalyst system comprises two components and each component comprises a crystalline molecular sieve having a Constraint Index of from about 1 to about 12 and an effective amount of Group VIII metal. The catalyst system finds particular application in ethylbenzene conversion/xylenes isomerization reactions. The catalyst system can be prepared by incorporating the Group VIII metal into the molecular sieves by competitive ion exchange.