Ni-Mo/HM上偏三甲苯异构化性能研究

摘要

在加压固定床反应器上,研究了Ni-Mo/HM催化剂的偏三甲苯异构化性能。重点考察了反应温度、反应压力、质量空速和氢油比[n(氢气)/n(偏三甲苯),下同]等因素对反应的影响,得到了较适宜的反应工艺条件:反应温度260~270 ℃,反应压力1.2 ~1.4 MPa,质量空速0.9~1.1 h^-1,氢油比为5~6。在反应温度260 ℃,压力1.2 MPa,质量空速1.0 h^-1,氢油比为5的条件下,偏三甲苯的质量转化率为49.17%,均三甲苯的质量收率为23.10%,均三甲苯的选择性为46.98%。实验结果表明在该反应条件下,该催化剂具有良好的催化活性。

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	王燕
	王明
	张旭斌
	朱怀工
	蔡旺锋
	葛喜慧

关键词：偏三甲苯；均三甲苯；异构化

Abstract：

The isomerization of 1,2,4-trimethylbenzene over Ni-Mo/HM catalyst was investigated in a pressurized fixed-bed reactor. Effects of reaction temperature, pressure, weight hourly space velocity (WHSV) and hydrogen-oil ratio on the reaction were studied. And the optimal reaction conditions were obtained, which were the reaction temperature 260~270 ℃, pressure 1.2~1.4 MPa, WHSV 0.9~1.1 h^-1, and hydrogen-oil ratio 5~6. Under the conditions of temperature 260 ℃, pressure 1.2 MPa, WHSV 1.0 h^-1, and hydrogen-oil ratio 5, the mass conversion of 1,2,4-trimethylbenzene was 49.17%, the mass yield of 1,3,5-trimethylbenzene was 23.10%, and the selectivity to 1,3,5-trimethylbenzene was 46.98%. The experimental results showed that the catalyst had excellent catalytic activity.

Keywords： 1,2,4-trimethylbenzene； 1,3,5-trimethylbenzene； isomerization

Received 2013-12-22;

Corresponding Authors: 王燕, E-mail: zhuwangyan@tju.edu.cn。 Email: zhuwangyan@tju.edu.cn

About author: 王燕(1972-),女,博士,副教授,研究方向:传质过程强化,化学反应工程。

引用本文:

王燕, 王明, 张旭斌, 朱怀工, 蔡旺锋, 葛喜慧.Ni-Mo/HM上偏三甲苯异构化性能研究[J]. 化学工业与工程, 2016,33(1): 35-39

Wang Yan, Wang Ming, Zhang Xubin, Zhu Huaigong, Cai Wangfeng, Ge Xihui.Research on the Isomerization of 1,2,4-Trimethylbenzene over Ni-Mo/HM[J]. Chemcial Industry and Engineering, 2016,33(1): 35-39

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