Quaternary (liquid + liquid) equilibrium data for the extraction of toluene from alkanes using the ionic liquid [EMim][MSO4] |
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| Institution: | 1. Advanced Separation Processes Group, Department of Chemical Engineering, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain;2. LSRE-Laboratory of Separation and Reaction Engineering, Associated Laboratory LSRE/LCM, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, Porto 4200-465, Portugal;1. University of Belgrade – Faculty of Pharmacy, Department of Drug Analysis, Vojvode Stepe 450, Belgrade, Serbia;2. University of Belgrade – Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Vojvode Stepe 450, Belgrade, Serbia;1. Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea;2. Natural Constituents Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea;3. Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Republic of Korea;4. Department of Biosystems and Biotechnology, Korea University, Seoul 02841, Republic of Korea;1. Department of Medicine, Immunology Section, University of Verona, Verona, Italy;2. Department of Chemistry, University of Pavia, Pavia, Italy;3. CNR – ICMATE, Padova, Italy;4. Department of Chemical Sciences, University of Padova, Padova, Italy;5. Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy;6. Department of Computer Sciences, University of Verona, Verona, Italy;7. University of Belgrade, Institute for Application of Nuclear Energy, Zemun, Serbia;8. University of Defence in Belgrade, Medical Faculty of the Military Medical Academy, Belgrade, Serbia;1. School of Mathematics and Statistics, Central South University, Changsha, 410083, PR China;2. Seven Bridges Genomics, 1 Main Street, Cambridge, MA, 02142, USA;3. Tencent Technology (Shenzhen) Company Limited, Shenzhen, 518057, PR China;4. Program of Applied and Computational Mathematics, Princeton University Princeton, NJ, 08544, USA;5. School of Mathematics and Statistics, Guangxi Teachers Education University, Nanning, 530023, PR China;6. Center for Bioinformatics, School of Information Science and Engineering, Central South University, Changsha, 410083, PR China;1. Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka 1212, Bangladesh;2. School of Mathematical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia;1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India;2. New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India;3. International Centre for Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India |
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| Abstract: | (Liquid + liquid) equilibrium (LLE) studies for the extraction of aromatics from alkanes present in the petroleum fractions are important to develop theoretical/semiempirical (liquid + liquid) equilibrium models, which are used in the design of extraction processes. In this work, the ionic liquid 1-ethyl-3-methylimidazolium methylsulfate, EMim]MSO4], was evaluated as potential solvent for the separation of toluene from heptane and cyclohexane. The LLE data for the quaternary system {heptane (1) + cyclohexane (2) + toluene (3) + EMim]MSO4] (4)} were experimentally determined at T = 298.15 K and atmospheric pressure. Moreover, the LLE data for the ternary systems {heptane or cyclohexane (1) + toluene (2) + EMim]MSO4] (3)} were also determined. Solute distribution ratios and selectivities were calculated and analysed in order to evaluate the capability of the ionic liquid to accomplish the separation target. A comparison between the solute distribution ratios and selectivities for the quaternary and the ternary systems was also made. Finally, the experimental tie-line data were correlated with the NRTL model. |
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| Keywords: | Ionic liquids Quaternary system Extraction Toluene Alkane |
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