1,3,3,3-四氟丙烯与异三十烷汽液相平衡实验测量

doi:10.11949/j.issn.0438-1157.20170284

化工学报 ›› 2017, Vol. 68 ›› Issue (8): 2979-2984.DOI: 10.11949/j.issn.0438-1157.20170284

1,3,3,3-四氟丙烯与异三十烷汽液相平衡实验测量

孙艳军^1,2, 王晓坡¹, 刘志刚¹, 金立文²

1 西安交通大学热流科学与工程教育部重点实验室, 陕西西安 710049;
2 西安交通大学人居环境与建筑工程学院建筑环境与能源应用工程系, 陕西西安 710049

收稿日期:2017-03-23 修回日期:2017-04-28 出版日期:2017-08-05 发布日期:2017-08-05
通讯作者: 王晓坡
基金资助:
国家自然科学基金项目（51606148）。

Measurement of gas-liquid phase equilibrium for trans-1,3,3,3-tetrafluoropropene and squalane

SUN Yanjun^1,2, WANG Xiaopo¹, LIU Zhigang¹, JIN Liwen²

1 Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China;
2 Department of Building Environment and Energy Engineering, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

Received:2017-03-23 Revised:2017-04-28 Online:2017-08-05 Published:2017-08-05
Supported by:
supported by the National Natural Science Foundation of China (51606148).

摘要/Abstract

摘要：

在原有等体积饱和法相平衡实验台的基础上，改进了可视窗口的平衡釜、调整了控温及搅拌系统。为了验证装置的可靠性，测量了温度为303.15 K时二氧化碳与季戊四醇四己酸酯的相平衡，测量结果与文献值的绝对平均偏差为0.95%，最大偏差为2.01%。在此基础上，采用改进的实验装置，测量了制冷剂1，3，3，3-四氟丙烯与异三十烷在温度为283.15~348.15 K范围内的汽液相平衡性质。利用PR状态方程及双参数的van der Waals混合规则对实验结果进行了关联，计算的平衡压力和实验压力的绝对平均偏差为0.88%，最大偏差为3.80%。此外，在温度范围为283.15~333.15 K内发现了1，3，3，3-四氟丙烯与异三十烷的不互溶现象。

关键词: 相平衡, 测量, 二元混合物, 1,3,3,3-四氟丙烯, 异三十烷

Abstract:

The gas-liquid phase equilibrium experimental system based on the isochoric saturation method in the laboratory was improved. The visual equilibrium cell, thermostatic system and magnetic stirring system were modified. In order to check the reliability and accuracy of the new system, the phase equilibrium of carbon dioxide and pentaerythritol tetrahexanoate was measured at 303.15 K, the absolute average deviation was 0.95% and the maximum deviation was 2.01% compared with the reference data. The expanded uncertainties of temperature, pressure and mole fraction are 0.03 K, 2.0 kPa, and 3.0%, respectively. Phase equilibria behavior of trans-1,3,3,3-tetrafluoropropene and squalane was determined at temperature range from 283.15 K to 348.15 K. The experimental data were correlated with Peng-Robinson equation of state and van der Waals mixing rule using two interaction parameters. The absolute average deviation between experimental data and calculated values for pressure was 0.88%, and the maximum deviation was 3.80%. In addition, the immiscibility phenomenon for trans-1,3,3,3-tetrafluoropropene and squalane mixtures was found in the temperature range from 283.15 K to 333.15 K.

Key words: phase equilibria, measurement, binary mixture, trans-1,3,3,3-tetrafluoropropene, squalane

中图分类号:

TK121

孙艳军, 王晓坡, 刘志刚, 金立文. 1,3,3,3-四氟丙烯与异三十烷汽液相平衡实验测量[J]. 化工学报, 2017, 68(8): 2979-2984.

SUN Yanjun, WANG Xiaopo, LIU Zhigang, JIN Liwen. Measurement of gas-liquid phase equilibrium for trans-1,3,3,3-tetrafluoropropene and squalane[J]. CIESC Journal, 2017, 68(8): 2979-2984.

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1,3,3,3-四氟丙烯与异三十烷汽液相平衡实验测量

Measurement of gas-liquid phase equilibrium for trans-1,3,3,3-tetrafluoropropene and squalane

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