Solubility of hydrocarbons in water: Experimental measurements and modeling using a group contribution with association equation of state (GCA-EoS) |
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Authors: | Selva Pereda Javeed A. Awan Amir H. Mohammadi Alain Valtz Christophe Coquelet Esteban A. Brignole Dominique Richon |
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Affiliation: | 1. Planta Piloto de Ingeniería Química, Universidad Nacional del Sur, CONICET, CC 717, 8000 Bahía Blanca, Argentina;2. MINES ParisTech, CEP/TEP - Centre énergétique et procédés, CNRS FRE 2861, 35 Rue Saint Honoré, 77305 Fontainebleau, France |
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Abstract: | In this communication, new experimental data on the solubility of n-hexane, cyclo-hexane and iso-octane in pure water are reported. The data have been measured using a static-analytic technique that takes advantage of a Rolsi™ sampling device in the temperature range of 298–353 K and at pressures up to 0.5 MPa. The experimental data measured in this work at 298 K have been compared with some selected data from the literature and good agreement is found. A group contribution plus association equation of state, namely the GCA-EoS, is used to model the phase equilibrium of water + hydrocarbon (C2 to n-C6, cy-C6, i-C4 and i-C8) system. The predictions of the model are found in good agreement with the experimental data measured in this work and some selected data from the literature. |
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Keywords: | GCA-EoS Equation of state Water Hydrocarbon Phase equilibria Experimental measurement Normal hexane Cyclo-hexane and Iso-octane |
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