苯甲醇-甲醇与苯甲醇-乙醇二元体系汽液平衡

Study on Vapor-Liquid Equilibria for Benzyl Alcohol-Methanol and Benzyl Alcohol-Ethanol Systems

实验测定了苯甲醇-甲醇、苯甲醇-乙醇体系在常压下的汽液平衡数据,采用Herrington法对数据进行了热力学一致性检验,结果表明所测数据符合热力学一致性。同时依据测定的汽液平衡数据计算出苯甲醇及甲醇、乙醇的无限稀释活度系数,求出W ilson活度系数模型参数,并计算了苯甲醇-甲醇、苯甲醇-乙醇体系于303.15 K的汽液平衡数据。

Vapor- liquid equilibria （ VLE ） data of benzyl alcohol （ 1 ） - methanol （2） system and benzyl alcohol （1）-ethanol （2） system at 101.33kPa were measured. The thermodynamic consistency of the VLE data was examined by Herrington method. In the meantime, the infinite dilution activity coefficient of benzyl alcohol and methanol or ethanol and the parameters of activity coefficient of Wilson model were determined with the experimental data. The isothermal vapor-liquid equilibria data at 303. 15K were predicted.