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. 12, 2017
Filed:
Oct. 08, 2015
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Jihad M. Dakka, Whitehouse Station, NJ (US);
Lorenzo C. DeCaul, Langhorne, PA (US);
Gregory J. De Martin, Flemington, NJ (US);
Michael Salciccioli, Houston, TX (US);
Neeraj Sangar, League City, TX (US);
Aaron B. Pavlish, Humble, TX (US);
Ali A. Kheir, Sugar Land, TX (US);
Gary D. Mohr, Sunset, SC (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
In a process for dehydrogenating cyclohexylbenzene and/or alkyl-substituted cyclohexylbenzene compounds, a dehydrogenation catalyst comprising at least one Group 10 metal compound on a support is heated in the presence of hydrogen from a first temperature from 0° C. to 200° C. to a second, higher temperature from 60° C. to 500° C. at a ramp rate no more than 100° C./hour. The dehydrogenation catalyst is contacted with hydrogen at the second temperature for a time from 3 to 300 hours to produce an activated dehydrogenation catalyst. A feed comprising cyclohexylbenzene and/or an alkyl-substituted cyclohexylbenzene compound is then contacted with hydrogen in the presence of the activated dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising biphenyl and/or an alkyl-substituted biphenyl compound.