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:
May. 10, 2011
Filed:
Jul. 11, 2008
Jane C. Cheng, Bridgewater, NJ (US);
Jihad M. Dakka, Whitehouse Station, NJ (US);
Travis A. Reine, Overijse, BE;
Jon E. Stanat, Westhampton Beach, NY (US);
Jane C. Cheng, Bridgewater, NJ (US);
Jihad M. Dakka, Whitehouse Station, NJ (US);
Travis A. Reine, Overijse, BE;
Jon E. Stanat, Westhampton Beach, NY (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A process for producing sec-butylbenzene comprises feeding reactants comprising benzene and a Colefin to a distillation column reactor having a first reaction zone containing an alkylation catalyst and a second distillation zone, which is located below said first reaction zone and which is substantially free of alkylation catalyst, wherein the ratio of the number of distillation stages in said first reaction zone to the number of distillation stages in said second distillation zone is less than 1:1. Concurrently in the distillation reactor, the reactants are contacted with the alkylation catalyst in the first reaction zone under conditions such that the Colefin reacts with the benzene to produce sec-butylbenzene and the sec-butylbenzene is fractioned from the unreacted Colefin. The sec-butylbenzene thereby passes as a liquid phase stream from the first reaction zone to the second distillation zone and the liquid phase steam is withdrawn from the distillation column reactor as bottoms.