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:
Mar. 15, 2011
Filed:
Aug. 12, 2008
Tan-jen Chen, Kingwood, TX (US);
Francisco M. Benitez, Houston, TX (US);
Jane C. Cheng, Bridgewater, NJ (US);
Jon E. Stanat, Houston, TX (US);
John Scott Buchanan, Lambertville, NJ (US);
Tan-Jen Chen, Kingwood, TX (US);
Francisco M. Benitez, Houston, TX (US);
Jane C. Cheng, Bridgewater, NJ (US);
Jon E. Stanat, Houston, TX (US);
John Scott Buchanan, Lambertville, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone. The benzene and hydrogen are then contacted in the at least one reaction zone under hydroalkylation conditions with a catalyst system comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene. The ratio of the total number of moles of hydrogen fed to said at least one reaction zone to the number of moles of benzene fed to said at least one reaction zone is between 0.4 and 0.9:1.