Allyl chloride epoxidation with H2O2 on TS-1/SiO2 catalyst in a fixed-bed reactor: experiments and deactivation kinetics

被引：7

作者：

Lin, Yi ^{[1
]}

Wang, Yaquan ^{[1
]}

Feng, Wenping ^{[1
]}

Wu, Guoqiang ^{[1
]}

Xu, Juan ^{[1
]}

Zhang, Teng ^{[1
]}

Wang, Shuhai ^{[1
]}

Wu, Xiaoxue ^{[1
]}

Yao, Pengxu ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300072, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2014年 / 112卷 / 01期

关键词：

Allyl chloride; Epoxidation; Titanium silicalite-1; Fixed-bed reactor; Deactivation kinetics; TITANIUM SILICALITE CATALYST; SUPPORTED TS-1 CATALYST; HYDROGEN-PEROXIDE; TECHNOLOGICAL PARAMETERS; REGENERATION; PROPYLENE; ALCOHOL; EPICHLOROHYDRIN; PERFORMANCE;

D O I：

10.1007/s11144-014-0682-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The epoxidation of allyl chloride with hydrogen peroxide catalyzed by a TS-1/SiO2 catalyst in a fixed-bed reactor has been studied. The effects of reaction temperature (304-316 K), methanol concentration (73.51-76.02 wt%) and hydrogen peroxide concentration (1.44-2.02 wt%) on the reaction are investigated. The experimental results show that the decreasing rate of hydrogen peroxide conversion with reaction time on stream decreases with rising reaction temperature, methanol concentration and decreasing hydrogen peroxide concentration. The kinetics of the catalyst decay of the allyl chloride epoxidation based on the Wojciechowski model is studied by fitting the experimental data. The results show that the deactivation reaction order is two, and the catalyst exhibits higher stability with higher methanol concentration and lower hydrogen peroxide concentration.

引用

页码：267 / 282

页数：16

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