1,3,3,3-四氟丙烯与异三十烷汽液相平衡实验测量

发布时间：2018-05-04 03:37

本文选题：相平衡 + 测量　；参考：《化工学报》2017年08期

【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。
[Abstract]:On the basis of the original experimental bench of phase equilibrium with equal volume saturation, the balance kettle with visible window is improved, and the temperature control and stirring system is adjusted. In order to verify the reliability of the device, the phase equilibrium of carbon dioxide and pentaerythritol tetracaproate at 303.15 K was measured. The absolute average deviation between the measured results and the reference value was 0.95g, and the maximum deviation was 2.01g. On this basis, the vapor-liquid equilibrium properties of the refrigerant 1 ~ 3 ~ 3 ~ (3) C ~ (3) fluoropropene and isotriaconane were measured in the temperature range of 283.15 ~ 348.15 K by using an improved experimental apparatus. The PR equation of state and the van der Waals mixing rule with two parameters are used to correlate the experimental results. The absolute average deviation of equilibrium pressure and experimental pressure is 0.88 and the maximum deviation is 3.80. In addition, in the temperature range of 283.15 ~ 333.15 K, it was found that the insoluble phenomenon between tetrafluoropropene and isotriaconane was found.
【作者单位】：西安交通大学热流科学与工程教育部重点实验室;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;
【基金】：国家自然科学基金项目(51606148)~~
【分类号】：O642.42

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