期刊
CHINESE JOURNAL OF CATALYSIS
卷 31, 期 7, 页码 759-764出版社
SCIENCE PRESS
DOI: 10.1016/S1872-2067(09)60085-1
关键词
alkylation; tert-butylation; phenol; tert-butyl alcohol; MCM-41
资金
- Research Council of the Isfahan University of Technology
- Center of Excellence in the Chemistry Department of Isfahan University of Technology
The catalytic performance of Al-MCM-41 containing 5-35 wt% H3PO4 was studied for the vapor phase alkylation of phenol with tert-butyl alcohol (TBA) from 383 to 493 K. 4-Tert-butyl phenol was produced as the main product with moderate selectivity. The product distribution depends on the reaction temperature, number of acid sites, and the Bronsted to Lewis sites ratios. A lower molar ratio of reactants (TBA/phenol = 2) and a higher space velocity facilitated the production of 4-tert-butyl phenol. The influence of various parameters such as temperature, reactant feed molar ratio, feed rate, and time on stream were investigated for conversion yield and product selectivity.
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