用鼓泡平衡釜测定高温汽液平衡数据及对总压测定的探讨

MEASUREMENT OF VAPOR-LIQUID EQUILIBRIUM AT HIGH TEMPERATURE WITH A BUBBLE-EQUILIBRIUM STILL AND THE DISCUSSION OF DETERMINATION OF THE TOTAL PRESSURE

本文用改进了的鼓泡平衡釜测定了均三甲苯-偏三甲苯体系在411.4K、424.2K、437.0K三个温度下,以及甲苯-正丁醇体系在353.5K及373.2K二个温度下的汽液平衡数据,所得数据均通过热力学一致性检验,实验数据用Wilson方程进行了关联,两个二元体系的计算值与实验值的偏差|△Y|<0.005,△Ymax<0.01。文中还就鼓泡平衡釜总压确定问题进行了探讨。

The vapor-liquid equilibrium data (T, x, y) for 1, 3, 5-trimethylbenzen-1, 2, 4-trimethylbenzen system at 411.4K, 424.2K, 437.0K and toluene-n-butanol system at 353.5K.373.2K were obtained with the improved Bubble Equilibrium still. All experimental Equilibrium data were tested with thermodynamic consistency and correlated by the Wilson Equation.The average and the maximum deviation of the experimental data from the calculated data are |⊿y|<0.005 and ⊿y_(max) <0.01 for both of these two binary systems.The determination of the total pressure for the Bubble-Equilibrium still has also been discussed.