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:
Oct. 21, 2008
Filed:
Mar. 15, 2004
Timothy E. Mcminn, Houston, TX (US);
Ronald J. Cimini, Friendswood, TX (US);
Robert A. Crane, Lumberton, TX (US);
Andrew M. Hiester, Houston, TX (US);
Teresa A. Jurgens-kowal, Seabrook, TX (US);
Gary D. Mohr, Houston, TX (US);
Timothy E. McMinn, Houston, TX (US);
Ronald J. Cimini, Friendswood, TX (US);
Robert A. Crane, Lumberton, TX (US);
Andrew M. Hiester, Houston, TX (US);
Teresa A. Jurgens-Kowal, Seabrook, TX (US);
Gary D. Mohr, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A process for controlling the hydrogenation activity of a catalyst comprised of a crystalline molecular sieve and at least one hydrogenation metal selected from the group consisting of a Group VIIB metal, a Group VIII metal, and mixtures thereof. The process is carried out by contacting the catalyst with hydrogen under sufficient conditions of temperature and pressure and for sufficient time to reduce the hydrogenolysis activity of the catalyst. The catalyst prepared by the process finds application in the catalytic conversion of organic compounds, such as ethylbenzene dealkylation, xylenes isomerization, and the transalkylation of polyalkylaromatic hydrocarbons.