(Vapour plus liquid) equilibrium data for the azeotropic {1,1-difluoroethane (R152a) plus 1,1,2,2-Tetrafluoroethane (R134)} system at various temperatures from (258.150 to 288.150) K

被引：16

作者：

Guo, Hao ^{[1
,2
]}

Gong, Maoqiong ^{[1
]}

Dong, Xueqiang ^{[1
]}

Wu, Jianfeng ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 54卷

基金：

中国国家自然科学基金;

关键词：

Saturated vapour pressures; (Vapour plus liquid) equilibrium; 1,1-Difluoroethane; 1,1,2,2-Tetrafluoroethane; MIXTURE;

D O I：

10.1016/j.jct.2012.03.022

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

(Vapour + liquid) equilibrium (VLE) data for the {1,1-difluoroethane (R152a) + 1,1,2,2-Tetrafluoroethane (R134)} system were measured at T = (258.150 to 288.150) K. The experiment is based on a static-analytic method. Experimental data were correlated with the Peng-Robinson equation of state (PR EoS) and the Huron-Vidal (HV) mixing rule involving the NRTL activity coefficient model. The results show good agreement with experimental results for the binary system at each temperature. It was found that the system has a negative azeotropic behaviour within the temperature range measured here. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：129 / 133

页数：5

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