用兰纳-琼斯位能和单参数Wilson方程预测汽液平衡

VLE PREDICTION WITH LENNARD-JONES POTENTIAL ENERGY AND ONE-PARAMETER WILSON EQUATION

根据兰纳-琼斯位能提出计算Wilson方程中同类分子间能量参数g_(ⅱ)的一个简便方法,用于单能数Wilson方程可成功地预测二元体系汽液平衡,预测精度与已有方法相当,且仅需纯物质的基础物性数据T_c,P_c和Z_c。

A simplified method for calculating the like-pair interactions gü of wilson equation is developed based on Lennard-Jones potential energy. With one-parameter Wilson equation, it can be succesfully used to predict the VLE of binary systems. The prediction accuracies are as good as other present methods, but only T_c, P_c and Z_c of pure species are needed.