Influence of n Si/n Al ratio of HY zeolite catalysts on alkylation of toluene with tert-butanol
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- 作者：Yuanyuan Wang ; Hua Song ; Xinglong Sun…
- 关键词：alkylation ; Si/Al ratio ; toluene ; 4 ; tert ; butyltoluene ; HY zeolite
- 刊名：Russian Journal of Physical Chemistry A, Focus on Chemistry
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：90
- 期：13
- 页码：2503-2507
- 全文大小：3,600 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Physical Chemistry
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1531-863X
- 卷排序：90
文摘
The highly selective synthesis of 4-tert-butyltoluene from toluene and tert-butanol over HY zeolites was performed in liquid phase. The effect of Si/Al ratio (6.3, 7.5, 11, 12) of HY zeolites on the alkylation performance was studied. The catalysts were characterized by SEM, XRD, FT-IR, and NH3-TPD methods. With increase of Si/Al ratio, the conversion of toluene and the selectivity towards 4-tert-butyltoluene increased gradually. HY-12 was found to be more suitable for the tert-butylation of toluene. When the alkylation reaction was conducted at 180°C for 4 h using HY-12 catalyst, the conversion and the selectivity of 4-tertbutyltoluene reached 40.74 and 70.91%, respectively.