Measurement of isothermal vapor-liquid equilibria for hydrocarbon+monocarboxylic acid binary systems by a flow-type apparatus
Measurement of isothermal vapor-liquid equilibria for hydrocarbon+monocarboxylic acid binary systems by a flow-type apparatus
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流动式装置测量烃一元酸二元体系的等温汽液平衡
DOI：
10.1021/je000015c
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发表时间：
2000
影响因子：
--
通讯作者：
Y. Arai
中科院分区：
文献类型：
--
作者：
Shinji Miyamoto;Shinichi Nakamura;Y. Iwai;Y. Arai
建立了一种测定等温汽液平衡的流动式装置。通过与文献值的比较，证实了该实验方法的可靠性。测定了烃类+一元羧酸二元体系的等温汽液平衡。烃类采用己烷、1-己烯、环己烷和苯，一元羧酸采用乙酸和丙酸。在这项工作中获得的实验数据被发现是符合热力学的。它们是通过应用NRTL模型的液相活度系数，并通过假设汽相关联的单羧酸。
A flow-type apparatus was constructed to measure isothermal vapor−liquid equilibria. The reliability of this experimental method was confirmed by comparing the data obtained with literature values. Isothermal vapor−liquid equilibria for hydrocarbon + monocarboxylic acid binary systems were measured. Hexane, 1-hexene, cyclohexane, and benzene were adopted for the hydrocarbons, and acetic acid and propionic acid for the monocarboxylic acids. The experimental data obtained in this work are found to be thermodynamically consistent. They are correlated by applying the NRTL model to liquid-phase activity coefficients and by assuming vapor-phase association of monocarboxylic acids.