β-环糊精协同乙烯基咪唑离子液体脱除溶剂油中的萘  

Remove naphthalene from solvent oil by vinyl imidazole ionic liquid andβ-cyclodextrin

作　　者：李恩田[1] 徐洋 姚培[2,3] 朱媛媛 张怿涵[1] 朱霞石 LI Entian;XU Yang;YAO Pei;ZHU Yuanyuan;ZHANG Yihan;ZHU Xiashi(Jiangsu Provincial Key Laboratory of Oil&Gas Storage and Transportation Technology,Changzhou University,Changzhou 213000,Jiangsu,China;Changzhou Vocational Institute of Engineering,Changzhou 213164,Jiangsu,China;School of Chemistry&Chemical Engineering,Yangzhou University,Yangzhou 225009,Jiangsu,China)

机构地区：[1]常州大学江苏省油气储运技术重点实验室,江苏常州213000 [2]常州工程职业技术学院,江苏常州213164 [3]扬州大学化学化工学院,江苏扬州225009

出　　处：《化工进展》2020年第4期1321-1328,共8页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21375117);2019年江苏省大学生创新创业项目(KYCX19_1787);扬州大学研究生科研创新计划(XKYCX17_035)。

摘　　要：采用1-乙烯基-3-正丁基溴代咪唑离子液体([VBIM]Br)为脱除剂,在β-环糊精协同作用下萃取溶剂油中的萘。本实验考察了不同单因素条件在[VBIM]Br离子液体与β-环糊精共同作用下对溶剂油中脱萘率的影响,同时通过响应面法优化脱除工艺条件。实验结果表明:[VBIM]Br离子液体与β-环糊精共同作用下对萘的萃取率比单独利用[VBIM]Br离子液体提高了15%以上,萃取率达到90%以上。离子液体简单回收后,重复使用5次过后,脱除率仍在80%以上。实验通过红外分析和紫外光谱分析了[VBIM]Br离子液体协同β-环糊精脱萘的机理,与[VBIM]Br离子液体协同作用下,β-环糊精对萘存在包合作用,实现了对溶剂油中萘的脱除。In this experiment,1-vinyl-3-butylimidazole brominated ionic liquid([VBIM]Br)andβ-cyclodextrin was used to remove naphthalene in the solvent oil.The effects of different single factor conditions on the removal rate of naphthalene in solvent oil under the joint action of[VBIM]Br ionic liquid andβ-cyclodextrin were investigated,and the removal process conditions were optimized by response surface analysis.The experimental results showed that:the removal rate of naphthalene by[VBIM]Br ionic liquid combined withβ-cyclodextrin was improved by more than 10%compared with that of[VBIM]Br ionic liquid used alone,and the extraction rate reached 90%.The removal rate of simply-recovered ionic liquid was reduced to 80%after 5 repetitions.The removal mechanism of naphthalene was analyzed by infrared and ultraviolet spectroscopy.In coordination with[VBIM]Br ionic liquid,β-cyclodextrin encapsulated naphthaleneis,and achieved the removal of naphthalene from solvent oil.

关 键 词：溶剂油 萘 1-乙烯基-3-正丁基溴代咪唑离子液体 Β-环糊精 响应面 萃取 

分 类 号：TQ028.32[化学工程]