New super-critical cohesion parameters for Soave-Redlich-Kwong equation of state by fitting to the Joule-Thomson Inversion Curve

被引：15

作者：

Ghanbari, Mehdi ^{[2
]}

Check, Gholam Reza ^{[1
]}

机构：

[1] Islamic Azad Univ, Fac Engn, Dept Chem Engn, N Tehran Branch, Tehran, Iran

[2] Rajaee Teacher Training Univ, Dept Sci, Tehran, Iran

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2012年 / 62卷

关键词：

Equation of state; Ideal curve; Joule-Thomson Inversion Curve; Cohesion function; Super-critical regions; Virial coefficients; VAPOR-LIQUID EQUILIBRIA; CARBON-DIOXIDE; MOLECULAR SIMULATION; CUBIC EQUATION; NATURAL-GAS; HIGH PRESSURES; ALPHA-FUNCTION; FLUID REGION; MELTING LINE; MIXTURES;

D O I：

10.1016/j.supflu.2011.10.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, super-critical cohesion parameters for Soave-Redlich-Kwong (SRK) equation of state (EOS) were adjusted by fitting cohesion parameters to the reliable Joule Thomson Inversion Curve (JTIC) data. For this purpose, the reliable JTIC data for CH4 and CO2 were adopted from literature. To evaluate the result, the modified SRK EOS was also compared to the EOSs including square-well (SW) EOS, four-parameter Trebble-Bishnoi (TB) EOS and Peng-Robinson (PR) EOS. Moreover, The JTICs obtained from the new EOS for nine substances Ar, Ne, N-2, O-2, C2H4, C2H6, CO2, CH4 and CO indicated new EOS abilities to present good predictions, while the SRK EOS produced the results underpredicted at high-temperature regions. In addition, a detailed analysis of the ideal curves including JTIC, Boyle curve and Zeno line and also compressibility factor curve, which were calculated by the new EOS was carried out. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：65 / 72

页数：8

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