Experimental Vapor−Liquid Equilibria for the Carbon Dioxide + Octane and Carbon Dioxide + Decane Systems
Experimental Vapor−Liquid Equilibria for the Carbon Dioxide + Octane and Carbon Dioxide + Decane Systems
复制标题
二氧化碳 + 辛烷和二氧化碳 + 癸烷系统的实验汽液平衡
DOI：
10.1021/je060111z
复制
发表时间：
2006
影响因子：
--
通讯作者：
O. Elizalde
中科院分区：
文献类型：
--
作者：
R. Jiménez;and Luis A. Galicia;O. Elizalde
在（322 ~ 372）K和（319 ~ 372）K范围内分别测定了二氧化碳+辛烷和二氧化碳+癸烷体系的气液平衡（VLE）。测量是通过与气相色谱仪在线连接的静态型仪器进行的。在348 K和344 K下，二氧化碳+辛烷和二氧化碳+癸烷体系的实验测量结果与文献报道的结果吻合得很好。两个系统使用Peng - Robinson状态方程与经典和Wong - Sandler混合规则相关联。使用Wong−Sandler混合规则获得了最佳的VLE表示，压力组分和平衡组分的绝对平均偏差分别小于1.8%和0.0020摩尔分数。
The vapor−liquid equilibria (VLE) for the carbon dioxide + octane, and carbon dioxide + decane systems were measured from (322 to 372) K and (319 to 372) K, respectively. The measurements were carried out with a static-type apparatus connected online to a gas chromatograph. A good agreement was found between the experimental measurements for the studied systems and those reported in the literature at 348 and 344 K for the carbon dioxide + octane and carbon dioxide + decane systems, respectively. Both systems were correlated using the Peng−Robinson equation of state with classical and Wong−Sandler mixing rules. The best VLE representation was obtained using the Wong−Sandler mixing rule with an absolute average deviation less than 1.8 % and 0.0020 mole fraction for pressure and equilibrium compositions, respectively.