基团法估算临界参数的改进  

Improvement of Group Contribution Method for Estimation of Critical Parameters

作　　者：马沛生[1] 王加宁[1] 李平[1] 

机构地区：[1]天津大学化工系

出　　处：《高校化学工程学报》1996年第4期351-354,共4页Journal of Chemical Engineering of Chinese Universities

摘　　要：在系统整理大量临界数据的基础上，提出了临界性质的新基团估算法及基团贡献值，ＴＣ、ＰＣ、ＶＣ的平均误差分别为０．７６、４．２５、２．３３％，此结果优于作为比较的Ｊｏｂａｃｋ法。此外。New group contribution correlations, which are based on systematical evaluation of critical data, for estimating critical properties have been proposed with contribution values of groups. The average deviations of T C,P C,V C are 0.76%, 4.25% and 2.33%respectively, and that are lower than those by Joback′s method chosen for comparison. In addition, this method can be used for longer chain compounds.

关 键 词：化合物 临界参数 基因贡献法 基因贡献值 

分 类 号：TQ013[化学工程]