Measurement and correlation of vapor-liquid equilibria for the ethanol plus n-heptane system near the critical region

被引：22
|
作者：
Seo, J
Lee, S
Kim, H
机构：
[1] Seoul Natl Univ, Sch Chem Engn, Gwanak Gu, Seoul 151744, South Korea
[2] Seoul Natl Univ, Inst Chem Proc, Gwanak Gu, Seoul 151744, South Korea
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2002年 / 47卷 / 04期
关键词：
D O I：
10.1021/je0200057
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Isothermal VLE data for ethanol 4- n-heptane have been obtained at near-critical temperatures. The critical pressures determined from the critical opalescence of the mixtures were compared with published work for ethanol + n-butane, ethanol + n-pentane, and ethanol + n-hexane systems. A circulating type apparatus with a view cell has been used. These mixtures are highly nonideal because of the association of ethanol, and the data could be correlated with sufficient accuracy by using the Peng-Robinson-Stryjek-Vera (PRSV) equation of state with Wong-Sandler mixing rules.
引用
收藏
页码：974 / 977
页数：4
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