Volume expansions and vapor-liquid equilibria of binary mixtures of a variety of polar solvents and certain near-critical solvents
Volume expansions and vapor-liquid equilibria of binary mixtures of a variety of polar solvents and certain near-critical solvents
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DOI：
10.1016/0896-8446(95)90033-0
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发表时间：
1995-09-01
影响因子：
3.9
通讯作者：
Peters, CJ
中科院分区：
文献类型：
--
作者：
Kordikowski, A;Schenk, AP;Peters, CJ
用一种新设计的装置测定了极性溶剂与二氧化碳、乙烷或乙烯的二元混合物的汽液平衡。泡点曲线测定了三个不同的温度。还获得了液相的密度。根据这些数据计算液相的体积膨胀。结果表明，体积膨胀的差异很大，这取决于所研究的二元系统。含二氧化碳的二元体系表现出一种有趣的密度行为，这在乙烷或乙烯体系中是没有的。泡点曲线用Peng-Robinson状态方程（EOS）模拟。
Vapor-liquid equilibria for binary mixtures of polar solvents with either carbon dioxide, ethane, or ethene were determined with a newly designed apparatus. Bubble-point curves were determined for three different temperatures. The densities of the liquid phases were also obtained. From these data the volume expansions of the liquid phases were calculated. The results show large differences in the volume expansions, depending on the binary system investigated. The binary systems with carbon dioxide show an interesting density behavior, which has no equivalent in the ethane or ethene systems. The bubble-point curves were modeled with the Peng-Robinson equation of state (EOS).