Efficient Extractive Desulfurization of Fuel Oils Using N-Pyrrolidone/Alkylphosphate-Based Ionic Liquids  

作　　者：Chunhai Liu Qihui He Zheng Zhang Yangyang Su Renfu Xu Baixing Hu 

机构地区：[1]MOE Key Laboratory of High Performance Polymer Materials and Technology,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing,Jiangsu 210093,China

出　　处：《Chinese Journal of Chemistry》2014年第5期410-416,共7页中国化学（英文版）

基　　金：We gratefully thank Nanjing University and Ministry of Education for the financial support of this project.

摘　　要：Four BrØsted acid ionic liquids(ILS)[MMP][DMP],[MEP][DEP],[HMP][DMP]and[HEP][DEP]were syn-thesized and used as extractants for desulfurization of aromatic sulfur compounds in model oil.The mutual solubil-ity of four ILs were investigated.The extraction equilibrium of four ILs could be reached in as soon as 5 min and the extraction capability followed the order[MMP][DMP]>[MEP][DEP]>[HEP][DEP]>[HMP][DMP].The S extraction showed the highest efficiency under the conditions of 30℃,30 min and 1∶1(V/V)IL∶oil.Under the optimal condition,70.9%of thiophene(TS),76.9%of benzothiophene(BT)and 87.5%of dibenzothiophene(DBT)in n-octane could be efficiently removed by[MMP][DMP].The multiple extraction and regeneration performance of[MMP][DMP]for TS was also investigated and the results were satisfying.These results suggest that[MMP][DMP]has the best extraction capability and can serve as a promising solvent for extractive desulfurization of fuel oils.

关 键 词：ionic liquids N-pyrrolidone alkylphosphate DESULFURIZATION 

分 类 号：R73[医药卫生—肿瘤]