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Isothermal P, x, y data for the argon + carbon dioxide system at six temperatures from 233.32 to 299.21 K and pressures up to 14 MPa

Abstract : Isothermal vapor-liquid equilibrium data have been measured for the argon + carbon dioxide binary system at 6 temperatures from 233.32 to 299.21 K, and at pressures from 1.5 to 14 MPa. The triple point temperature of CO 2 (216.58 K) is higher than the Ar critical temperature (150.86 K). As a consequence, working at temperatures higher than the triple point temperature of CO 2, it is not possible to define the vapor pressure of pure Ar and the vapor-liquid equilibrium isotherms will always present a mixture critical point. VLE data have been measured using the "static-analytic" method, taking advantage of two pneumatic capillary samplers (Rolsi™, Armines's patent) designed and developed in the CEP/TEP laboratory. The isothermal P, x, y data are well represented with the Peng-Robinson equation of state combined with Mathias-Copeman alpha function and the Wong-Sandler mixing rules involving the NRTL model.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00797901
Contributor : Jordane Raisin-Dadre <>
Submitted on : Thursday, March 7, 2013 - 3:07:57 PM
Last modification on : Thursday, September 24, 2020 - 5:22:04 PM

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Christophe Coquelet, Alain Valtz, Dominique Richon, Philippe Arpentinier, F. Lockwood. Isothermal P, x, y data for the argon + carbon dioxide system at six temperatures from 233.32 to 299.21 K and pressures up to 14 MPa. Fluid Phase Equilibria, Elsevier, 2008, 273 (1-2), pp.38-43. ⟨10.1016/j.fluid.2008.08.010⟩. ⟨hal-00797901⟩

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