Vapor−Liquid Equilibria for Propane (R290) + n-Butane (R600) at Various Temperatures
Vapor−Liquid Equilibria for Propane (R290) + n-Butane (R600) at Various Temperatures
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DOI：
10.1021/je800377b
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发表时间：
2008-11
影响因子：
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通讯作者：
G. Seong;K. Yoo;J. Lim
中科院分区：
文献类型：
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作者：
G. Seong;K. Yoo;J. Lim
分别在（273.15,283.15,293.15,303.15,313.15和323.15）K下测量了丙烷(R290) +正丁烷（R600）二元混合物的等温汽液平衡数据。实验采用连续循环式平衡装置进行，测量温度、压力和液、气相组成。使用Wong - Sandler混合规则将实验数据与Peng - Robinson状态方程（PR-EOS）进行关联。计算结果与实验数据吻合较好。该体系与拉乌尔定律有轻微的负偏差，在研究的所有温度范围内均无共沸物。
Isothermal vapor−liquid equilibrium data for the binary mixture of propane (R290) + normal butane (R600) were measured at (273.15, 283.15, 293.15, 303.15, 313.15, and 323.15) K, respectively. The experiments were carried out using a continuous circulation-type equilibrium apparatus to measure temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Peng−Robinson equation of state (PR-EOS) using the Wong−Sandler mixing rule. The calculated results showed good agreement with experimental data. This system showed slightly negative deviation from Raoult’s law and no azeotropes for all the temperature ranges studied here.