含醇系统的汽液平衡的缔合模型  

Association Model of Vapor-Liquid Equilibria for Systems Containing Alcohols

作　　者：洪建康[1] 胡英[1] 

机构地区：[1]上海医药设计院,华东化工学院

出　　处：《高校化学工程学报》1994年第1期16-24,共9页Journal of Chemical Engineering of Chinese Universities

摘　　要：本文将无限线性缔合模型和ＲＫ方程式相结合建立了含醇系统的热力学模型，对含醇系统进行了相平衡计算。结果表明：对于纯物质，本模型在广阔的温度、压力范围内能描述ＰＶＴ关系；对于醇－醇系统和醇－烃系统，该模型仅需要一个物理作用参数就能获得与活度系数法大致相当的结果。A infinite linear association model and RK equation are adopted for accounting for chemical and physical interactions respectively to study phase equilibria of systems containing alcohols. The model is able to describe thermidynamic properties such as vapor pressure and liquid density over a wide range of temperature for pure alcohols as well as nonassocciating substances. Calculations of vapor-liquid equilibria for associated systems show that only one adjustable parameter is required and the results are as good as that of usual activity coefficient methods.

关 键 词：醇 汽液平衡 缔合模型 

分 类 号：O623.41[理学—有机化学]