Extraction process design for the separation of aromatic and aliphatic hydrocarbons using organic solvent, ionic liquid or their mixture: a comparative study

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 represe...

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Bibliographic Details
Published in:Brazilian journal of chemical engineering 2020-03, Vol.37 (1), p.307-322
Main Authors: Addouni, M., Benyounes, H., Jin, S., Haddou, B., Shen, W.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
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Summary: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].
ISSN:0104-6632
1678-4383
DOI:10.1007/s43153-019-00006-9