钛硅分子筛催化氧化脱除粗苯中的有机硫化物

化工进展

钛硅分子筛催化氧化脱除粗苯中的有机硫化物

王倩，揭嘉，周国平，谭勇，杨运泉

湘潭大学化工学院

出版日期:2007-09-25 发布日期:2007-09-25

Removal of organic sulfur from crude benzene over titanium silicalite using hydrogen peroxide

WANG Qian，JIE Jia，ZHOU Guoping，Tan Yong，YANG Yunquan

School of Chemical Engineering，Xiangtan University

Online:2007-09-25 Published:2007-09-25

摘要/Abstract

摘要： 采用以钛硅分子筛（TS-1）为催化剂，双氧水为氧化剂，水为溶剂的反应体系，对粗苯中的噻吩有机硫化物的脱除进行了研究。通过单因素试验考察了时间、温度、氧化剂用量、催化剂用量及溶剂用量对反应的影响，确定了各因素对反应的影响大小顺序为：TS-1用量＞双氧水用量＞反应时间＞温度；以噻吩的脱除率为指标，采用正交实验方法，得出最佳的反应条件为：n（噻吩）∶n（双氧水） =4∶1，时间8 h，温度75 ℃，TS-1用量为0.15%（质量分数）。在此条件下，噻吩的脱除率达99.58%。实验表明：该法具有操作简单，反应条件温和（低温常压下即可进行），低成本费用以及高有机硫脱除率的特点。是一条具有较好应用和推广价值的工业有机硫脱除新途径。

Abstract: The process for removal of organic-sulfur from crude benzene over titanium silicalite（TS-1） by hydrogen peroxide was studied. The factors affecting the reaction，including reaction time，reaction temperature，the dose of TS-1 and the dose of H2O2 were investigated. The influence of these factors was in the following order：dose of TS-1>dose of H2O2> reaction time>reaction temperature. The removal conditions of thiophene were optimized by orthogonal design with the goal of maximizing removal efficiency. The optimum removal parameters were：reacting time 8 hours，temperature at 75℃，n双氧水∶n噻吩=4∶1 and TS-1 0.15%（wt）. Under the optimal conditions，the removal of thiophene was 99.58%. A new and highly efficient method for organic-sulfur removal with the features of easy operation，mild reaction condition（low temperature and normal pressure） and low cost of is of value to be commercialized.

王倩，揭嘉，周国平，谭勇，杨运泉. 钛硅分子筛催化氧化脱除粗苯中的有机硫化物 [J]. 化工进展.

WANG Qian，JIE Jia，ZHOU Guoping，Tan Yong，YANG Yunquan. Removal of organic sulfur from crude benzene over titanium silicalite using hydrogen peroxide[J]. Chemical Industry and Engineering Progree.