Phase equilibria of allyl sulfide + carbon dioxide binary mixtures: Experimental data and thermodynamic modeling |
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| Affiliation: | 1. PLAPIQUI, Universidad Nacional del Sur, CONICET, Camino la Carrindanga Km 7, C.C. 717, 8000 Bahía Blanca, Argentina;2. Delft University of Technology, Faculty of Applied Science, DelftChemTech, Laboratory of Physical Chemistry and Molecular Thermodynamics, Julianalaan 136, 2628 BL Delft, The Netherlands;1. State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science&Chemical Engineering, Ningbo University, Ningbo 315211, China;2. Key Laboratory for Molecular Design and Nutrition Engineering of Ningbo, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China;1. Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark;2. Biological Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99354, USA;3. Agilent Technologies UK Ltd., 6 Mead Road, Yarnton, Oxfordshire OX5 1QU, United Kingdom;1. Departamento de Ciencia y Tecnología de los Alimentos, Facultad de Química, Universidad de la República, Montevideo, Uruguay;2. Departamento de Biociencias, Área de Microbiología, Facultad de Química, Universidad de la República, Montevideo, Uruguay |
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| Abstract: | This contribution reports new experimental data on vapor–liquid equilibrium of the binary system diallyl sulfide + carbon dioxide, at temperatures between 275 and 370 K and pressures up to 12 MPa. These data are of interest to study the extraction of Allium oils from garlic and onion, using near-critical CO2. The experimental data were modeled with a group-contribution equation of state. A (CH2S) functional group has been defined to represent alkyl and allyl sulfides. Pure group and binary interaction parameters for this new functional group have been determined. Good correlation and prediction of phase equilibrium conditions were obtained. |
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