The goal of the present work is focused on the design of a liquid–liquid extraction process using organic solvent, ion liquids (IL), as well as their mixture. For this purpose, the sulfolane/[bmim][SCN] system was investigated. Benzene–heptane binary mixture has been selected as a case study representing aromatic and aliphatic hydrocarbon families, respectively. A comparative study among three proposed extraction processes employing the traditional organic solvent sulfolane, [bmim][SCN] and the system of sulfolane/[bmim][SCN] has been provided to determine the optimal process for benzene extraction. For feed containing less than 50 wt% of benzene, it was recommended to use a mixed solvent containing 60 wt% of [bmim][SCN].

中文翻译：

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使用有机溶剂、离子液体或其混合物分离芳烃和脂肪烃的萃取工艺设计：比较研究

目前工作的目标是设计使用有机溶剂、离子液体 (IL) 及其混合物的液-液萃取工艺。为此，研究了环丁砜/[bmim][SCN] 系统。苯-庚烷二元混合物已被选为分别代表芳香族和脂肪族烃族的案例研究。对采用传统有机溶剂环丁砜 [bmim][SCN] 和环丁砜/[bmim][SCN] 系统的三种拟议提取工艺进行了比较研究，以确定苯提取的最佳工艺。对于苯含量低于 50 wt% 的进料，建议使用含有 60 wt% [bmim][SCN] 的混合溶剂。