Catalytic oxidative desulfurization of fuels in acidic deep eutectic solvents with [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40) as a catalyst

查看全文 作　　者：Wei [1]Jiang;Hao [2]Jia;Zhanglong [2]Zheng;Linhua [3]Zhu;Lei [2]Dong;Wei [2]Liu;Wenshuai [2]Zhu;Huaming [1]Li

机构地区：[1]Institute for Energy Research,Jiangsu University;[2]School of Chemistry and Chemical Engineering,Jiangsu University;[3]Key Laboratory of Tropical Medicinal Plant Chemistry of Education,Hainan Normal University

出　　处：《Petroleum Science》索引2018年第15卷第4期,共8页

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 21506080 and 21766007);Natural Science Foundation of Jiangsu Province (No. BK20150485);Advanced Talents of Jiangsu University (No. 15JDG053);A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions 摘　　要：Deep eutectic solvents(DESs) are a new class of green solvents analogous to ionic liquids due to their biodegradable capacity and low cost. However, the direct extractive desulfurization of diesel oil by DESs cannot meet the government's standard. In this work, amphiphilic polyoxometalates were synthesized and characterized by FT-IR and mass spectrometry.The oxidative desulfurization results showed that benzothiophene(BT) could be completely removed by employing a [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40), DES(ChCl/2 Ac) and H_2O_2 system. It was also found that the organic cation of catalysts played a positive role in oxidative desulfurization. The reaction conditions, such as reaction temperature and time, the amount of catalyst and DES and H_2O_2/S(O/S) molar ratio, were optimized. Different sulfides were tested to determine the desulfurization selectivity of the optimal reaction system, and it was found that 97.2% of dibenzothiophene(DBT) could be removed followed by 80.7% of 4-MDBT and 76.0% of 4,6-DMDBT. After reaction, the IR spectra showed that the catalyst [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40) was stable during the reaction process and the oxidative product was dibenzothiophene sulfone(DBTO_2). Furthermore, the catalyst can be regenerated and recycled for four runs with little loss of activity. 关键词：DIESEL OXIDATIVE DESULFURIZATION Deep EUTECTIC solvents POLYOXOMETALATES H2O2

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Catalytic oxidative desulfurization of fuels in acidic deep eutectic solvents with [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40) as a catalyst

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