Research on the Isomerization of 1,2,4-Trimethylbenzene over Ni-Mo/HM

Related Articles

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.

	Service

	Email this article
	Add to my bookshelf
	Add to citation manager
	Email Alert
	RSS
	Articles by authors
	Wang Yan
	Wang Ming
	Zhang Xubin
	Zhu Huaigong
	Cai Wangfeng
	Ge Xihui

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

Received 2013-12-22;

About author:

Cite this article:

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,V33(1): 35-39

[1] Tsoung Y Y. Pseudocumene and mesitylene production and coproduction thereof with xylene: US, 5004854[P]. 1991-04-02
[2] Schutz A A, Cullo L A. Method of making mesitylene: US, 5087781[P]. 1992-02-11
[3] Berg L. Separation of mesitylene from 1,2,4-trimethylbenzene by azeotropic distillation: US, 6136155[P]. 2000-10-24
[4] Dalloro L, Cesana A, Buzzoni R, et al. Process for the production of mesitylene: US, 20040225170[P]. 2004-11-11
[5] Dalloro L, Cesana A, Buzzoni R, et al. Process for the production of mesitylene and durene: US, 6949687[P]. 2005-09-27
[6] Dalloro L, Cesana A, Buzzoni R, et al. Process for the production of mesitylene: US,7157397[P]. 2007-01-02
[7] 张卫江, 曲红梅, 孙兴华, 等. 1,3,5-三甲苯联产1,2,4,5-四甲苯生产工艺的研究[J]. 天津大学学报, 2002, 35(1): 108-112 Zhang Weijiang, Qu Hongmei, Sun Xinghua, et al. Study on the production of mesitylene and durene[J]. Transactions of Tianjin University, 2002, 35(1):108-112 (in Chinese)
[8] 张鹏飞, 王聪, 池红卫, 等. 偏三甲苯非临氢异构化制均三甲苯工艺的研究[J]. 石油化工, 2005, 34(5): 441-444 Zhang Pengfei, Wang Cong, Chi Hongwei, et al. New technology for synthesis of mesitylene from pseudocumene[J]. Petrochemical Technology, 2005, 34(5): 441-444(in Chinese)
[9] 周婷, 陈晓蓉, 陈长林. 改性WO₃/ZrO₂催化剂上偏三甲苯异构化[J]. 南京工业大学学报(自然科学版), 2008, 30(3): 21-25 Zhou Ting, Chen Xiaorong, Chen Changlin. Isomerization of 1,2,4-trimethylbenzen over modified WO₃/ZrO₂ catalysts[J]. Journal of Nan Jing University of Technology(Natural Science Edition), 2008, 30(3): 21-25(in Chinese)
[10] 高滋, 何鸣元, 戴逸云. 沸石催化与分离技术[M]. 北京: 中国石化出版社, 1999
[11] 孙学勤, 乔明雁, 郭伟玲. 铂重整塔底油及其精馏产品气相色谱分析[J]. 化学与粘合, 1992, (2): 98-100 Sun Xueqin, Qiao Mingyan, Guo Weiling. The gas chromatographic analysis of platforming xylene tower bottoms and its refined products[J]. Chemistry and Adhesion, 1992, (2): 98-100(in Chinese)