Stability limit determination for pure compounds

被引：2
|
作者：
Babalola, F. U. [1 ]
Susu, A. A. [1 ]
机构：
[1] Univ Lagos, Dept Chem Engn, Lagos, Nigeria
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2008年 / 26卷 / 12期
关键词：
benzene; cyclohexane; n-hexane; stability;
D O I：
10.1080/15567030701776783
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The Helmholtz criteria for equilibrium and stability were used with the Peng-Robinson (P-R) equation of state to determine the limits of stability for n-hexane, cyclohexane, and benzene, as representative paraffinic, naphthenic, and aromatic compounds, respectively. The cubic equation that results from the criteria of stability was solved to obtain the three roots of volume at different pressures. The intersection of the stability curve and the temperature isotherm determines the limit of stability for a compound. The stability limits tend to increase with increase in temperature alone for each substance.
引用
收藏
页码：1481 / 1497
页数：17
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