中文摘要：

在没有任何有机溶剂和卤素的条件下，以质量分数30％的H2O2为氧化剂，Na2WO4·2H2O为催化剂，在酸性离子液体[（CH2）4SO3HMIm]TSO中，将柴油中的噻吩硫氧化为矾类物质，并通过离子液体将其萃取，同时考察了反应温度、反应时间和离子液体用量等因素对氧化脱硫反应的影响，得出最佳反应条件：3mL油样（含硫质量分数为500μg／g），n（离子液体）／n（Na2WO4·2H2O）=40：1，0．7mL双氧水，333K，2h，脱硫率为97．4％。反应结束后，通过简单的倾倒将油样和催化剂分离，重复使用4次，其催化活性基本不变。

英文摘要：

Without any organic solvents and halide, the oxidation of thiophenic sulfur into sulfone which would be extracted by the ionic liquid catalyzed by Na2WO4 ·2H2O with mass fraction of 30% hydrogen peroxide in acidic ionic liquid E（CH2）4SO3 HMIm]TSO was investigated. Effects of temperature, reaction time and amount of catalyst on the reaction of oxidative desulfurization were also investigated. The optimal reaction conditions are as follows： 3 mL oil sample （500 μg/g sulfur content）, the ratio of 40：1 for n（IL）/n（Na2 WO4·2 H2 O）, 0.7 mL hydrogen peroxide, reaction temperature of 333 K and reaction time of 2 h. And the rate of desulfurization is 97. 4% under this condition. When the reaction was completed, diesel oil and catalyst could be separated by simple decantation. The catalyst could be recycled 4 times without obvious change in catalytic activity.