二元醇烃体系加压汽液平衡的状态方程法预测

PREDICTION OF VAPOR-LIQUID EQUILIBRIA UNDER PRESSURE BY EQUATION OF STATE FOR ALCOHOL-HYDROCARBON BINARY MIXTURES

用扩充的BACK状态方程对苯-正庚烷、苯-乙醇、正庚烷-乙醇三个二元体系从常压下的汽液平衡数据预测加压到810kPa下的汽液平衡比、露点压力和汽相组成。与实验数据比较,取得了满意的结果。

The vapor-liquid equilibrium ratios, dew point pressures and vapor compositions under pressure up to 810. 6 kPa are predicted from the vapor-liquid equilibrium data at 101. 3 kPa for benzene-n-heptane, benzene-ethanol and n-heptane-ethanol three binary systems by the augmented BACK equation of state. Satisfactory results are achieved as compared with the experimental data.