Vapor-liquid phase equilibrium for carbon dioxide-n-hexane at 40, 80, and 120 .degree.C
Vapor-liquid phase equilibrium for carbon dioxide-n-hexane at 40, 80, and 120 .degree.C
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二氧化碳-正己烷在 40、80 和 120°C 时的汽液相平衡
DOI：
10.1021/je00023a018
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
R. Robinson
中科院分区：
文献类型：
--
作者：
Ying;Kenneth H. Dillard;R. Robinson
已在 40、80 和 120/sup 0/C 的温度下测量了二氧化碳-正己烷的蒸气和液体平衡相组成。在每个温度下，压力范围从大约 6.8 atm (100 psia) 到接近系统临界压力。根据这些数据计算二氧化碳和正己烷的平衡 K 值。这项工作的数据可以用索阿维状态方程很好地表示。当使用 Soave 方程中的最佳相互作用参数 C12 = 0.131 时，液相和气相的预测相组成（在固定 T 和 P 下）的平均误差分别为 0.012 和 0.009。
Vapor and liquid equilibrium phase compositions have been measured for carbon dioxide-n-hexane at temperatures of 40, 80, and 120/sup 0/C. At each temperature, the pressure range from approximately 6.8 atm (100 psia) to near the system critical pressure was covered. Equilibrium K values for carbon dioxide and n-hexane were calculated from these data. The data from this work are well represented by the Soave Equation of State. When one uses an optimum interaction parameter, C12 = 0.131, in the Soave equation, average errors in the predicted phase compositions (at fixed T and P) are 0.012 and 0.009 for the liquid and vapor phases, respectively.