ZSM-5负载杂多酸催化剂的制备及其氧化脱硫性能研究  

Preparation of ZSM-5 Supported Heteropoly Acid and Its Catalytic Performance in Oxidation Desulfurization

作　　者：于悦 陈晓陆[1] 赵小龙 谷晓飞 白玉凤 高爽[1] YU Yue;CHEN Xiao-lu;ZHAO Xiao-long;GU Xiao-fei;BAI Yu-feng;GAO Shuang(Liaoning Key Laboratory of Chemical Additive Synthesis and Separation,School of Chemical and Environmental Engineering,Yingkou Institute of Technology,Yingkou Liaoning 115014,China;Liaoning Pengfei Industrial Co.,Ltd.,Yingkou Liaoning 115100,China)

机构地区：[1]营口理工学院化学与环境工程学院辽宁省助剂合成与分离重点实验室,辽宁营口115014 [2]辽宁鹏飞实业有限公司,辽宁营口115100

出　　处：《辽宁化工》2023年第7期929-932,共4页Liaoning Chemical Industry

基　　金：辽宁省教育厅基本科研项目(青年项目)(项目编号:LJKQZ2021183);营口理工学院校级科研项目(项目编号:QNL202110)。

摘　　要：以ZSM-5材料为载体,分别采用浸渍法、溶胶凝胶法、水热分散法将杂多酸(磷钼酸、磷钨酸)负载于ZSM-5上制备催化剂。利用X射线衍射、红外光谱、扫描电镜等方法对催化剂进行了表征,发现杂多酸能够高度分散在载体表面。以苯并噻吩为反应物进行氧化脱硫反应,考察了不同合成条件对反应效率的影响。结果表明:水热分散法合成负载磷钨酸催化剂的脱硫效果最好,在反应温度为60℃,负载量为10%,剂油等体积比的最佳反应条件下,脱硫率为73.2%。A supported catalyst was prepared by impregnation method,sol-gel method and hydrothermal dispersion method with heteropoly acid(phosphomolybdic acid and phosphotungstic acid)on ZSM-5 support.The catalyst was characterized by X-ray diffraction,infrared spectroscopy and scanning electron microscopy,and it was found that the heteropoly acid dispersed uniformly in the surface and pore channels of ZSM-5.Benzothiophene was used as reactant for oxidative desulphurization and the effects of different synthesis conditions on the reaction efficiency were investigated.It was found that the desulfurization efficiency of supported phosphotungstic acid catalyst synthesized by hydrothermal dispersion was the best,under the optimum conditions that reaction temperature was at 60℃,the loading amount was 10%and the volume ratio of oxidant to oil was 1∶1,the desulfurizationl rate by the catalyst was 94.95%.

关 键 词：氧化脱硫 ZSM-5 杂多酸 催化剂 苯并噻吩 

分 类 号：O643.3[理学—物理化学]