中文摘要：

制备了N-丁基吡啶四氟硼酸盐离子液体（[BPy]BF4）,考察了其对含有噻吩和二苯并噻吩的模型油萃取脱硫的效果.在此基础上以离子液体为萃取剂,以过氧化氢（质量分数30%）为氧化剂,研究了其对模型油进行萃取-氧化脱硫的效果,结果表明,当V（[BPy]BF4）∶V（Oil）∶V（H2O2）=1∶1∶0.4时,在55℃下进行萃取-氧化脱硫30 min,噻吩和二苯并噻吩的脱硫率分别达到78.5%和84.3%;将该萃取-氧化体系应用于实际汽油体系,脱硫率达到56.3%;对使用过的离子液体进行再生处理,重复使用4次脱硫率无明显变化.

英文摘要：

The N-butyl-pyridinium-based ionic liquid ／BF4 was prepared.The effect of extraction desulfurization on model oil with thiophene and DBT was investigated.Ionic liquid and hydrogen peroxide were tested in extraction-oxidation desulfurization to model oil.The results show that ionic liquid ／BF4 is effective to remove sulfur content in model oil.The best conditions are V（IL）∶V（Oil）∶V（H2O2）=1∶1∶0.4,55 ℃ and 30 min.The ratios of desulfurization to thiophene and DBT reached 78.5% and 84.3%,respectively,which were much higher than extraction desulfurization only with ionic liquid.In this condition,effect of desulfurization on FCC gasoline was also investigated,the desulfurization was 56.3%.Regenerate ionic liquid can be used more than 4 times.