Isothermal vapor–liquid equilibrium data for the ethylene + 1,1,2,3,3,3-hexafluoro-1-propene binary system between 258 and 308 K at pressures up to 4.56 MPa
作者： Shalendra Clinton Subramoney , Xavier Courtial , Paramespri Naidoo , Christophe Coquelet , Dominique Richon
DOI: 10.1016/J.FLUID.2013.05.018
关键词: Fluorocarbon 、 Isothermal process 、 Equation of state 、 Chemistry 、 Non-random two-liquid model 、 Vapor–liquid equilibrium 、 Binary system 、 Phase (matter) 、 Thermodynamics 、 Capillary action
摘要: Isothermal vapor-liquid equilibrium data are reported for ethylene + 1,1,2,3,3,3-hexafluoro-1-propene mixtures at six temperatures in the 258.35-307.38 K range, and pressures up to 4.56 MPa. The experimental were measured using an apparatus based on "static-analytic" method equipped with a movable ROLSI™ capillary sampler repeatable reliable phase sampling handling. isothermal P-x-y well correlated model comprised of Peng-Robinson equation state containing Mathias-Copeman alpha function, Wong-Sandler mixing rule, NRTL local composition model. combined is termed "PR-MC-WS-NRTL". studied system does not exhibit azeotropic behavior nor liquid-liquid immiscibility over range investigated temperatures. Mixture critical points calculated from via extended scaling laws PR-MC-WS-NRTL model, found be good agreement envelopes.
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