用拓扑法关联预测气液平衡的研究  

CORRELATION AND PREDICTION OF VLE WITH TTM

作　　者：李汝雄[1] 黄少华[1] 卢莲英 

机构地区：[1]武汉化工学院化工系

出　　处：《化学工程》1989年第1期47-51,共5页Chemical Engineering(China)

摘　　要：用TTM法的十个模型关联了三个二元物系的VLE,并进行了模型选择,还关联了恒压、恒温二元系的VLE,又对用某温度下的参数预测相邻温度下的气液平衡以及由已知二元数据预测由组分同系物组成的其它二元系的气液平衡进行研究。结果表明,对所研究的含醇和丙酮物系,用TTM法关联的结果一般与用Margules方程相近,比用UNIQUAC,Wilson方程差,但用TTM法计算简单。用该法预测相邻温度下的VLE是可行的,而预测同系物组成的二元系尚需进一步研究。The VLE of three binary systems are correlated with ten models of TTM (Topological Treatment of Mixtures)and a comparasion of the models is made. The VLE of some binary systems at isothermal and isobaric conditions are correlated with the model chosen. The VLE at neibouring temperature predicted with the parameters at certain temperature, and the VLE of other binary systems composed of the series compounds which is predicted with given data of the binary systems are studied. For the systems containing alcohol and ketone investigated, the results show that the results correlated with TTM are as good as those with Margules equation,and worse than those with Wilson and-UNIQU-AC equations, although TTM method is simple.It's feasibility for the TTM method to predict the VLE at neibouring temperature, but it's need to be further studied for the binary systems composed of series compounds.

关 键 词：拓扑法 二元体系 气液平衡 丙酮 醇 

分 类 号：O642.42[理学—物理化学]