N-butyl-pyridinium tetrafluoroborate as a highly efficient ionic liquid for removal of dibenzothiophene from organic solutions  

作　　者：Maedeh Enayati Hossein Faghihian 

机构地区：[1]Department of Chemistry,Shahreza Branch,Islamic Azad University

出　　处：《燃料化学学报》2015年第2期195-201,共7页Journal of Fuel Chemistry and Technology

摘　　要：In this research,1-butyl-pyridinium tetrafluoroborate([C4Py][BF4]-)was prepared by ion exchange method and was characterized by1H-NM R,13C-NM R,and FT-IR techniques.The synthesized ionic liquid w as used for removal of dibenzothiophene as a typical organosulfur pollutant from organic medium.The effect of different parameters on the extraction efficiency w as studied and optimized.At the optimized conditions,97.68%of dibenzothiophene w as extracted from 1 000 mg/L n-hexane solution.The extraction efficiency obtained in this w ork w as higher than the previous reported values.The desulfurization reaction w as kinetically follow ed the second order mechanism.The ionic liquid w as reusable and after four regeneration cycles 97%of its original extraction efficiency w as retained.In this research,1-butyl-pyridinium tetrafluoroborate（ [C4Py][BF4]-） was prepared by ion exchange method and was characterized by1H-NMR,13C-NMR, and FT-IR techniques.The synthesized ionic liquid was used for removal of dibenzothiophene as a typical organosulfur pollutant from organic medium.The effect of different parameters on the extraction efficiency was studied and optimized.At the optimized conditions,97.68% of dibenzothiophene was extracted from 1 000 mg/L n-hexane solution.The extraction efficiency obtained in this work was higher than the previous reported values.The desulfurization reaction was kinetically followed the second order mechanism.The ionic liquid was reusable and after four regeneration cycles 97%of its original extraction efficiency was retained.

关 键 词：抽取 DESULFURIZATION 离子的液体 DIBENZOTHIOPHENE 

分 类 号：TE624[石油与天然气工程—油气加工工程]