Journal ArticleDOI
High-pressure vapor-liquid equilibrium with a UNIFAC-based equation of state
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In this paper, the ability of the mixing rules proposed by Michelsen to predict high-pressure phase equilibrium, when used in combination with the parameter table of modified UNIFAC, was investigated.Abstract:
Recent procedures developed by Heidemann (1990) and by Michelsen (1990a, b) enable us to formally incorporate excess Gibbs energy model parameters into a fully consistent equation of state, cith accurate reproduction of the behavior of the excess Gibbs energy model at atmospheric pressure.
This paper investigates the ability of the mixing rules proposed by Michelsen to predict high-pressure phase equilibrium, when used in combination with the parameter table of modified UNIFAC. Considering that a group contribution method is used for the excess Gibbs energy and that model parameters are extrapolated over a 200 K temperature interval, quite satisfactory results are obtained for the mixtures investigated.read more
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Isothermal vapor–liquid equilibrium of ternary system (difluoromethane + propane + trifluoroiodomethane) at temperatures ranging from 263.15 K to 303.15 K
TL;DR: In this paper, a static analytical apparatus has been developed to measure the vapor-liquid phase equilibrium property of R32, R290 and R13I1 at temperatures from 253.15 to 303.15 K. Satisfactory agreement with published calculation and experimental data are found and the reliability of the experimental setup is verified.
Journal ArticleDOI
Modelling low pressure LLE and VLE of methanol/alkane mixtures with a modified Peng-Robinson EoS and the Huron-Vidal mixing rules
TL;DR: In this article, the capabilities and limitations of a simple cubic EoS/GE thermodynamic model to describe the phase equilibria of methanol/alkane mixtures using generalized binary interaction parameters were assessed.
Journal ArticleDOI
The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K
TL;DR: In this paper, the isothermal vapor plus liquid equilibrium (VLE) data for the R23 plus R32 system were determined experimentally at six temperatures from 223.150 to 273.150
Journal ArticleDOI
Measurement and modeling of the solubility of CO2 and N2 in a model resin system based on resin from spruce wood (Picea abies (L.))
TL;DR: In this article, a thermodynamic description of phase behavior between CO2, N2 and wood resin is represented by a model system composed of three main components from the resin (oleic acid, α-pinene and abietic acid).
Journal ArticleDOI
Isothermal Vapor–Liquid Equilibrium (VLE) and Vapor–Liquid–Liquid Equilibrium (VLLE) Data for Two Binary Systems Containing Perfluorohexane with Carbon Monoxide or Hydrogen Sulfide at (293, 313, and 333) K
Mulamba Marc Tshibangu,Alain Valtz,Caleb Narasigadu,Christophe Coquelet,Christophe Coquelet,Deresh Ramjugernath +5 more
TL;DR: In this paper, isothermal vapor-liquid equilibrium (VLE) and VLE-VLLE data are presented for binary systems containing perfluorohexane (C6F14) with carbon monoxide (CO) or hydrogen sulfide (H2S) at three temperatures, viz. (293, 313, and 333) K, with pressures ranging from (0.322 to 24.497) MPA.
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