Synthesis of 4-tert-Butyltoluene by Vapor Phase tert-Butylation of Toluene with tert-Butylalcohol over USY Zeolite

*Yan Ming Shen -  School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Shan Yuan -  School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Li Hui Fan -  School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Dong Bin Liu -  School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Shi Feng Li -  School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Received: 17 Jul 2014; Published: 27 Feb 2015.
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Section: Original Research Articles
Language: EN
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Abstract

Vapour phase tert-butylation of toluene with tert-butylalcohol was studied over ultra-stable Y zeolite (USY) catalyst. The effects of reaction temperature, toluene/TBA molar ratio and liquid space velocity on conversion of toluene and selectivity for 4-tert-butyltoluene were studied. The deactivation and regeneration of the catalyst was also investigated. The results showed that the USY zeolite catalyst offered better toluene conversion of about 30 % and 4-tert-butyltoluene selectivity of about 89 % at the suitable reaction condition as follows: reaction temperature of 120 oC, toluene/TBA ratio of 2:1 and liquid space velocity of 2 ml/g·h. The clogging of mocropores by the formed carbon or oligomers was the main reason for the deactivation of the catalyst. By combustion at 550 oC, the catalyst just lost about 5 % in toluene conversion and about 2 % in PTBT selectivity. © 2015 BCREC UNDIP. All rights reserved

Received: 17th July 2014; Revised: 31st August 2014; Accepted: 3rd September 2014

How to Cite: Shen, Y.M., Yuan, S., Fan, L., Liu, D.B., Li, S.F. (2015). Synthesis of 4-tert-Butyltoluene by Vapor Phase tert-Butylation of Toluene with tert-Butylalcohol over USY Zeolite. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (1): 1-7. (doi:10.9767/bcrec.10.1.7140.1-7)

Permalink/DOI: http://dx.doi.org/10.9767/bcrec.10.1.7140.1-7

Keywords
Toluene; Butylation; 4-tert-Butyltoluene; USY; Vapor phase

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