C_8芳烃异构体+异丙醇或叔丁醇体系的恒压汽液平衡

Isobaric Vapor-Liquid Equilibrium for C_8 Aromatic Hydrocarbon Isomer+2-Propanol or t-Butanol Systems

这是为了较好地解决高效分离混合二甲苯所进行的一项基础性研究。准确测定了 0 .0 999MPa压力下邻、间、对二甲苯或乙苯 +异丙醇或叔丁醇八个体系的恒压汽液平衡数据 ,计算了该压力下八个体系中二组分的活度系数 ,作出了各体系的汽液平衡曲线及活度系数曲线 ,并讨论所呈现的规律。

Isobaric Vapor-Liquid equilibrium data at 0.0999MPa for C 8 aromatic hydrocarbon isomer +2-Propanol or t-Butanol systems 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 coefficent of liquid phase.All the experimental data have been tested by the method proposed by Herington,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 rather good agreements with the experimental data.