Quaternary liquid–liquid equilibria for systems of {(water + methanol or ethanol) + m-xylene + n-dodecane} |
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| Institution: | 1. Thermodynamic Research Laboratory, Department of Chemistry, Kashan University, Kashan, Iran;2. Department of Chemical Engineering, Amir-Kabir University of Technology, Tehran, Iran;3. Department of Chemistry, Kashan University, Kashan, Iran;1. College of Chemistry and Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, China;2. Department of Energy Conversion of Storage, Technical University of Denmark, Risø Compus, Frederiksborgvej 399, Roskilde, DK-4000, Denmark;3. CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China;1. Planta Piloto de Ingeniería Química - Universidad Nacional del Sur – CONICET CC 717 - 8000 Bahía Blanca, Prov. Buenos Aires, Argentina;2. IDTQ-Grupo Vinculado PLAPIQUI – CONICET, Argentina;3. Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba – Av. Vélez Sarsfield 1611, Ciudad Universitaria, X5016GCA Córdoba, Argentina;4. Departmento de Engenharia Quimica, Universidad Estadual de Maringá, 87020-900 Maringá, PR, Brazil;1. CAS Key Laboratory of Low-Carbon Conversion Science & Engineering, Chinese Academy of Sciences, Shanghai 201210, PR China;2. Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China;3. ShanghaiTech University, 100 Haike Rood, Shanghai 201210, PR China;4. Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China;1. Instituto de Investigación y Desarrollo en Ingeniería de Procesos y Química Aplicada – IPQA, Universidad Nacional de Córdoba (UNC) – CONICET, Córdoba, Argentina;2. Universidad Nacional de Córdoba (UNC), Córdoba, Argentina;1. Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy;2. School of Applied Sciences, Wolverhampton University, Wulfruna Street, WV1 1LY, UK;3. eni S.p.A., Research Center for Unconventional Energies, v. G. Fauser 4, 28100 Novara, Italy |
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| Abstract: | Liquid–liquid equilibrium (LLE) data were determined for the quaternary systems of {(water + methanol or ethanol) + m-xylene + n-dodecane} at three temperatures 298.15, 303.15 and 313.15 K and atmospheric pressure. The composition of liquid phases at equilibrium was determined by gas–liquid chromatography and the results were correlated with the UNIQUAC and NRTL activity coefficient models. The partition coefficients and the selectivity factor of the solvent are calculated and compared. The phase diagrams for the quaternary systems including both the experimental and correlated tie lines are presented. |
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