CIESC Journal

• 化工学报 • 上一篇    下一篇

色谱斜率法测过量自由焓模型参数

徐振林,汪绍昆,田维民,时钧   

  1. 南京化工学院,南京化工学院 ,南京化工学院 ,南京化工学院 现在江苏省盐城工专工作
  • 出版日期:1985-06-25 发布日期:1985-06-25

Parameters in Models of Excess GibbsFree Energy by the ChromatographicSlope Method

Xu Zhenlin Wang Shaokun Tien Weimin and Shi Jun (Nanjing Institute of Chemical Technology)   

  • Online:1985-06-25 Published:1985-06-25

摘要: 本文在Lenoir工作的基础上,重新推导了((?)γ/(?)χ)_(x=0)的数学表达式,结果与Kikic及Renon在1976年推导的公式不同.按本文推导的结果,用色谱测定了十个二元系的γ_1~∞_1与((?)lnγ_1/(?)x_1)x_1=0之值,代入UNIQUAC方程求取方程参数,再用求得的方程预测全浓度范围汽波平衡数据.除其中四个二元系无文献数据,另一个因形成氢键而误差较大外,均与文献数据甚为符合.

Abstract: On the basis of Lenoirs work, a new mathematical expression for x=0 has been derived, which is different from that of Kikic and Renno. Values of γ∞1 and for ten binary systems have been calcula- ted from GLC data according to the results derived in this work. When the experimental values of γ∞1 and were substituted into the UNIQUAC equation, the parameters were evaluted, and the vapor-liquid equilibria of these binary systems were predicted.