优等
非随机双液模型
热力学
三元运算
化学
三元数制
一致性(知识库)
汽液平衡
二进制数
柠檬烯
起泡点
蒸汽压
二进制系统
活度系数
数学
物理
气泡
物理化学
机械
色谱法
几何学
有机化学
水溶液
算术
相(物质)
计算机科学
程序设计语言
精油
作者
Lixia Sun,Kun Wang,Dankui Liao,Tie Wei,Xiaopeng Chen,Zhangfa Tong
摘要
Vapor−liquid equilibrium (VLE) data for binary systems of β-pinene + p-cymene and β-pinene + (S)-(−)-limonene and the ternary system of β-pinene + p-cymene + (S)-(−)-limonene were measured at 100.7 kPa using the modified Ellis equilibrium still. The experimental data of binary systems were tested for thermodynamic consistency with the method of Herington and point-to-point test of Van Ness. The parameters of four solution models—Wilson, nonrandom two-liquid (NRTL), universal quasichemical activity coefficient (UNIQUAC), and Liebermann−Fried—were calculated with the aid of the least-squares method to minimize an objective function based on the total pressure. The thermodynamic consistency of the VLE data of the ternary system was tested with the method of McDermott−Ellis, modified by Wisniak and Tamir. Also, the ternary system data were compared with the predicted values, using the parameters of Wilson model obtained from the binary systems. The predicted bubble-point temperature and the vapor composition for the ternary system were in good agreement with the experimental results.
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