【摘要】 以磷钼酸和十八烷基三甲基溴化铵为主要成分，合成多金属氧酸盐并将其负载在二氧化钛上，用过渡金属离子Ni对其进行了改性制得镍改性HPMo/TiO₂催化剂。将该催化剂用于模拟油氧化萃取脱硫工艺，对该催化剂在镍改性前后的脱硫工艺条件进行考察，并通过FT-IR、XRD、BET等手段对催化剂进行了表征。结果表明，镍改性HPMo/TiO₂催化剂可以对模拟油品中的大部分含硫化合物进行有效脱除，在用量0.3 g/kg、氧硫体积比为1∶10，反应温度60℃，反应时间40 min时，脱硫效果最好，脱硫率可达97.41%。更多还原

【Abstract】 Polyoxometalates were synthesized using phosphomolybdate and octadecyl trimethyl ammonium bromide as the main components.Anickel modified HPMo/TiO₂ catalyst was prepared by loading the polyoxometalates onto TiO₂ and modifying it with Ni²⁺.The catalyst was characterized by FT‐IR,XRD,BET and other methods,and used to simulate the oil oxidation extraction desulfurization process.The optimum desulfurization process conditions of the catalyst before and after Ni²⁺ modification were investigated.The results showed that the modified HPMo/TiO₂ catalyst could effectively remove most sulfur-containing compounds in the simulated oil.The best desulfurization effect was achieved at a dosage of 0.3 g,oxygen sulfur volume ratio of 1∶10,reaction temperature of 60℃，and reaction time of 40 min,with a desulfurization rate of 97.41%.更多还原