应用分子聚集理论计算含醇体系的汽液平衡  

Using a Theory of Molecular Aggregation to Calculate Vapor-Liquid Equilibrium for systems Containing Primary Alcohol

作　　者：童景山[1] 高光华[1] 

机构地区：[1]清华大学化工系

出　　处：《高校化学工程学报》1989年第3期1-8,共8页Journal of Chemical Engineering of Chinese Universities

摘　　要：含醇体系的汽相由于分子缔合从而引起组份的汽相逸度系数偏离1较大,故对汽相非理想性的校正是不容忽视的。本文论述了应用“分子聚集理论”对正烷烃—伯醇混合物的汽相进行非理想校正的计算方法;汽相应用“分子聚集理论”改进的维里方程,而液相采用UNIQUAC活度系数方程。通过对含伯醇的混合物体系的汽液平衡进行计算,取得了好的结果。This paper discusses the theory of molecular aggregation which we have used to correct the non-ideality of vapor phase for n-alkane-primary alcohol systems. For systems containing primary alcohol, the partial fugacity coefficient deviation of vapor phase caused by molecular association is very great, so the correction for non-ideality of vapor phase should not be neglected. For some systems containing primary alcohol, we have used the virial equation modified by the theory of molecular aggregation for vapor phase, and the UNIQUAC equation of activity coefficient for liquid phase. The calculated results of vapor-liquid epuilibrium are very satisfactory.

关 键 词：汽液平衡 汽相 逸度系数 分子缔合 伯醇 维里方程 组份 正烷烃 混合规则 维里系数 

分 类 号：TQ-55[化学工程]