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.
作者
李恩田
徐洋
姚培
朱媛媛
张怿涵
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)
出处
《化工进展》
EI
CAS
CSCD
北大核心
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)。
作者简介
第一作者:李恩田(1977-),男,硕士,副教授,研究方向为油品脱硫技术研究。E-mail:let@cczu.edu.cn;通信作者:姚培,副教授,硕士生导师,研究方向为环境化学材料的制备与应用。E-mail:yaopeitel@163.com。
