Abstract: Sulfur-containing compounds in transportation fuels are converted by combustion to SOx, which is a major source of air pollution and damages exhaust devices. For the environmental protection purpose, in the paper, hydrophobic ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim]PF6) and surfactant-type decatungstate were synthesized and characterized by means of FT-IR, UV-Vis and TG-DSC. The amphiphilic decatungstate was assembled in hydrophobic ionic liquid emulsions system with 30 wt% H2O2 as oxidant, which has been found suitable for the deep removal of DBT in fuels. In this catalytic oxidation desulfurization system, the role of the main factors affecting the process including reaction temperature, reaction time, O/S molar ratio, and catalyst dosage, were investigated in detail. The results demonstrated that the favorable operating conditions were recommended as reaction temperature T = 70˚C, reaction time t = 3 h, V(oil) = 5 mL, V([Bmim]PF6) = 1 mL, n(DBT)/n([(CH3)3NC16H33]4W10O32) = 10:1, n(H2O2):n(DBT) = 2, [(CH3)3NC16H33]4W10O32 as catalyst and the removal of sulfur to 98.7%. We also found that the ionic liquid emulsion catalytic oxidative desulfurization system was also superior to the simple extrac-tion with hydrophobic ionic liquid or the catalytic oxidative [Bmim]PF6. Furthermore, the me-chanism of catalytic oxidation desulfurization was elaborated.
文章引用: 葛建华 , 高良敏 , 刘少敏 , 胡友彪 (2014) [(CH3)NC16H33]4W10O32/H2O2/[Bmim]PF6离子液体乳液催化氧化脱硫性能的研究。 环境保护前沿， 4， 112-122. doi: 10.12677/AEP.2014.44016
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