Extending application of Dehaghani Association Equation of State for Modeling Phase Behavior of Water-Alcohol Systems

被引:0
|
作者
Dehaghani, Amir Hossein Saeedi [1 ]
Badizad, Mohammad Hasan [2 ]
机构
[1] Tarbiat Modares Univ, Fac Chem Engn, Dept Petr Engn, Tehran, Iran
[2] Sharif Univ Technol, Dept Chem & Petr Engn, Tehran, Iran
关键词
Alcohol; Association; Equation of state; Thermodynamic model; Aqueous solution; ASPHALTENE; FLUIDS; CO2;
D O I
10.1016/j.fluid.2018.11.027
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper concerns extending applicability of Dehaghani association equation of state (in short DA-EOS) to model non-ideality in phase behavior caused by hydrogen bonding. Advantageously, this equation only needs two and one parameters to treat self- and cross association, respectively, which were determined for methanol/water and ethanol/water mixture in this study. In this respect, DA was coupled with PR and SRK EOS to account for physical interaction between molecules. Notably, DA-PR persistently provides more accurate prediction than DA-SRK for both aqueous methanol and ethanol solutions. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:126 / 133
页数:8
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