Fluid phase equilibria for the CO2 + 2,3-dimethylbutane binary system from 291.9 K to 373.1 K - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Journal of Supercritical Fluids Année : 2022

Fluid phase equilibria for the CO2 + 2,3-dimethylbutane binary system from 291.9 K to 373.1 K

Résumé

The phase behavior of the CO2 (1) + 2,3-dimethylbutane (2) binary mixture has been experimentally studied between 293 and 373 K. Saturation pressures, ranging from 14.0 to 112.2 bar, were visually measured using a high-pressure cell at carbon dioxide mole fractions between 0.20 and 0.93. 78 experimental points have been measured: 67 bubble points and 11 dew points. Experimental results reveal that the vapor-liquid critical locus is a continuous curve between the two pure compounds, meaning that the studied binary system exhibits a type I or II phase behavior in the classification scheme of Van Konynenburg and Scott. The experimental data can be very satisfactorily represented by the Peng-Robinson equation of state with mixing rules that embed a temperature-dependent binary interaction parameter.
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hal-03347858 , version 1 (21-09-2021)

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Sarra Zid, Jean-Patrick Bazile, Jean-Luc Daridon, Andrés Piña-Martinez, Jean-Noël Jaubert, et al.. Fluid phase equilibria for the CO2 + 2,3-dimethylbutane binary system from 291.9 K to 373.1 K. Journal of Supercritical Fluids, 2022, 179, pp.105387. ⟨10.1016/j.supflu.2021.105387⟩. ⟨hal-03347858⟩
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