Synthesis of Tungstophosphates of Heteropoly Compound and Its Catalytic Property in Oxidative Desulfurization of Diesel

作     者：BIN Xiaobei WANG Kaipeng CAO Hong KUANG Shenglu YUAN Jizu 

作者机构：School of Resource and Environment Engineering Wuhan University of Technology Wuhan 430070 Hubei China School of Material Science and Engineering Wuhan Institute of Technology Wuhan 430074 Hubei China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2008年第13卷第1期

页      面：98-102页

学科分类：0820[工学-石油与天然气工程] 08[工学] 

基　　金：Supported by the Natural Science Foundation of Hubei Province (2004ABA090) 

主　　题：diesel oxidative desulfurization heteropoly compound catalyst 

摘      要：Several kinds of Tungstophosphates of Heteropoly Compounds （TPHC） with different compositions and the same structure were synthesized using the method of solid-phase reaction to change the tool ratio of Na4P2O7·10H2O, WO3 and Na2WO4 · 2H2O. TPHC, as a catalyst, was used in oxidative desulfurization of diesel. The results show that TPHC has catalytic activity. With THPC existing, the highest desulfurization rate reaches 51.85%, 32.6% higher than that yield without TPHC. And the desulfiarization rate increases with decreasing WO3. FT-IR spectra of TPHC shows that the catalytic activity is related to the activity of end oxygen（Od）.The more active Od is, the stronger the capability of obtaining or losing electron is. It means that TPHC has a good catalytic activity. FT-IR spectra of TPHC indicates that desulfurization rate is in linear correlation with Iw-Od/Ip-Od/ Iw-Od is intensity of W-Od vibration band, Ip-Od is intensity of P-Od vibration band） and correlation coefficient reaches 0.965.