李恩田¹,朱媛媛¹,姚培^2,3,徐洋¹,张怿涵¹,朱霞石³

• 1:常州大学 石油工程学院，江苏 常州 213164
• 2:常州工程职业技术学院 化工与制药工程学院，江苏 常州 213164
• 3:扬州大学 化学与化工学院，江苏 扬州 225000

摘要(Abstract)：

为了获得一种低成本、高效率的油品脱硫方法，选择3种碳链烷烃取代的磁性铁基咪唑离子液体[C_nmin]Br/FeCl₃（n=4，6，8）为脱硫剂，并添加β-环糊精（β-CD），使之与磁性离子液体（MILs）共同作用，深度脱除汽油中的二苯并噻吩（DBT）。实验分别考察了MILs、β-CD以及β-CD与MILs共同作用下对汽油中DBT的脱除率。结果表明：β-CD和MILs共同作用下对汽油中的DBT有更好的脱除效果；其最佳脱硫条件为油剂比（V（oil）：V（MILs））达到1：1，萃取时间30 min，萃取温度40℃，β-CD加量0.01 g；此条件下[C₈min]Br/FeCl₃脱硫率最高，达到98%，汽油收率为96.5%，MILs回收率为92%左右。同时分析了β-CD与[C₈min]Br/FeCl₃共同作用的脱硫机理，结果表明：MILs-β-CD对汽油中DBT有较强的包合能力，使得β-CD协同MILs能够更好地脱除DBT。

关键词(KeyWords)： 磁性铁基离子液体;β-环糊精;汽油;脱硫;协同作用

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（21375117）；扬州大学研究生科研创新计划项目（XKYCX17_035）；江苏省333工程；江苏省青蓝工程；江苏省研究生科研与实践创新计划项目（KYCX19_1787）。

作者(Author): 李恩田¹,朱媛媛¹,姚培^2,3,徐洋¹,张怿涵¹,朱霞石³

DOI: 10.3969/j.issn.1003-9015.2020.03.037

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