Measurement of Vapor-Liquid Equilibria for the Pentafluoroethane plus Propene Binary System from (263.15 to 323.15) K

被引：7

作者：

Hou, Shu-Xin ^{[1
]}

Duan, Yuan-Yuan ^{[1
]}

机构：

[1] Tsinghua Univ, Key Lab Thermal Sci & Power Engn MOE, Beijing 100084, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2010年 / 55卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Temperature - Liquids - Uncertainty analysis - Systems (metallurgical) - Binary mixtures - Equations of state of liquids - Propylene;

D O I：

10.1021/je100049k

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isothermal vapor-liquid equilibrium (VLE) data were measured for the pentafluoroethane (CAS No. 354-33-6, R125) + propene (CAS No. 115-07-1, R1270) binary systems at five temperatures from (263.15 to 323.15) K using a circulation-type VLE apparatus. The uncertainties of the measured data were estimated to be +/- 0.005 K for temperature, +/- 600 Pa for pressure, and +/- 0.001 in mole fraction for both the liquid and the vapor phases, respectively. The experimental data sets for the measured system were tested for thermodynamic consistency using procedures for high-pressure systems. The VLE data were correlated using the Peng-Robinson equation of state combined with the classical mixing rules. The calculated results agree well with the experimental data. The compositions of the azeotropes at each temperature for the binary system were also evaluated.

引用

页码：3184 / 3188

页数：5

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