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. 21, 2010
Filed:
Sep. 10, 2008
Jihad Mohammed Dakka, Whitehouse Station, NJ (US);
John Scott Buchanan, Lambertville, NJ (US);
Robert Andrew Crane, Hellertown, PA (US);
Christine Nicole Elia, Bridgewater, NJ (US);
Xiaobing Feng, Houston, TX (US);
Larry Lee Iaccino, Seabrook, TX (US);
Gary David Mohr, Houston, TX (US);
Brenda Anne Raich, Annandale, NJ (US);
Jose′ Guadalupe Santiesteban, Baton Rouge, LA (US);
Lei Zhang, Bridgewater, NJ (US);
Jihad Mohammed Dakka, Whitehouse Station, NJ (US);
John Scott Buchanan, Lambertville, NJ (US);
Robert Andrew Crane, Hellertown, PA (US);
Christine Nicole Elia, Bridgewater, NJ (US);
Xiaobing Feng, Houston, TX (US);
Larry Lee Iaccino, Seabrook, TX (US);
Gary David Mohr, Houston, TX (US);
Brenda Anne Raich, Annandale, NJ (US);
Jose′ Guadalupe Santiesteban, Baton Rouge, LA (US);
Lei Zhang, Bridgewater, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.