Isothermal Vapor-Liquid Equilibrium Data for the Hexafluoroethane (R116) + Propane System at Temperatures from (263 to 323) K

被引：31
|
作者：
Ramjugernath, Deresh [1 ]
Valtz, Alain [2 ]
Coquelet, Christophe [2 ]
Richon, Dominique [2 ]
机构：
[1] Univ KwaZulu Natal, Thermodynam Res Unit, Sch Chem Engn, Durban, South Africa
[2] MINES ParisTech, CEP, TEP, CNRS,FRE 2861, F-77305 Fontainebleau, France
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2009年 / 54卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
ETHANE PLUS HEXAFLUOROETHANE; R227EA SYSTEM; TEMPERATURES; PRESSURES; MPA; MIXTURES; STATE; PHASE;
D O I：
10.1021/je800849s
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Isothermal vapor-liquid equilibrium data are presented for the system hexafluoroethane (R116) + propane. Measurements were performed for six isotherms (three isotherms below and three above the critical temperature of RI 16) ranging from (263.3 to 323.19) K, with pressure ranging from (0.344 to 3.851) MPa. The measurements were undertaken using a "static-analytic" type apparatus, with sampling of the equilibrium phases via pneumatic capillary samplers (Rolsi, Armine's patent). The apparatus as well as the samplers were developed in the CEP/TEP laboratory. The uncertainties in the measurements were within +/- 0.01 K, +/- 0.0003 MPa, and < 2.0 % for temperatures, pressures, and mole fractions, respectively. The full set of isothermal vapor-liquid equilibrium data was correlated with the Peng-Robinson equation of state, incorporating the Mathias-Copeman alpha function, with the Wong-Sandler mixing rule utilizing the NRTL activity coefficient model.
引用
收藏
页码：1292 / 1296
页数：5
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