CRITICAL PROPERTIES PREDICTION BASED ON A QUARTIC EQUATION OF STATE

被引：4
|
作者：
Zang, Lian-yun [1 ]
Zhu, Qing-li [1 ]
Yun, Zhi [1 ]
机构：
[1] Nanjing Univ Technol, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2010年 / 88卷 / 06期
关键词：
critical properties; equation of state; prediction; PARAMETERS; FLUIDS;
D O I：
10.1002/cjce.20370
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A quartic equation of state (EOS) [Yun et al., Fluid Phase Equilibr. 2001; 187-188: 275-298] is used for predicting critical properties of pure substances. Parameters in the EOS are rewritten as functions of temperature (T in K), and there are totally eleven substance-specific constants in the functions for each substance. Data of few experimental points including saturated vapour pressure, saturated liquid molar volume and evaporation enthalpy at some temperatures are required in this study to determine the substance-specific constants in the EOS, while the knowledge of molecular structure is not necessary.
引用
收藏
页码：1003 / 1009
页数：7
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