C_8芳烃异构体+叔丁醇体系在12.666kPa下的汽液平衡

Vapor liquid equilibrium of o-,m-,p-xylene or ethyl benzene + t-butanol at 12.666kPa

采用CP -I型汽液平衡双循环釜 ,测定了 12 6 6 6kPa压力下叔丁醇 +乙苯、叔丁醇 +o -二甲苯、叔丁醇 +m -二甲苯、叔丁醇 +p -二甲苯 4个体系的汽液平衡数据 ,计算了该压力下 4个体系中各组分的活度系数。并对所测数据进行了恒压下热力学一致性检验。用Wilson方程关联了实验数据 ,拟合精度令人满意。

Isobaric vapor-liquid equilibrium data at 12.666kPa for four systems(t-butanol+ethyl benzene,t-butanol+o-xylene, t-butanol+m-xylene,t-butanol+p-xylene)were measured by a CP-I still.pitzer-curl-tsonopoulos correlation for accounting the nonideal behavior of the vapor phase and liquid phase was used for calculating the activity coefficient of liquid phase.All the experimental data have been tested by the method proposed by herington and the results show that the experimental data conform to demand of thermodynamic consistency. Composition and component′s activity coefficient of liquid phase were correlated with Wilson equation. The calculated values of the vapor composition are in good agreements with the experimental data.