常压下环己烯-环氧环己烷二元汽液平衡数据的测定和关联  

Measurement and Correlation of Vapor Liquid Equilibrium Data for Cyclohexene-1,2-epoxycyclohexane Binary System under Normal Pressure

作　　者：王学猛[1] 蒋登高[1] 耿再新[1] 

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《高校化学工程学报》2009年第3期365-368,共4页Journal of Chemical Engineering of Chinese Universities

摘　　要：用分子氧对环己烯直接进行环氧化涉及到的内容之一是环己烯与环氧环己烷的分离。为了为二者的分离提供基础物性数据,采用了改进的EC-2型汽液平衡釜测定了常压下(101.33kPa)环己烯(1)-环氧环己烷(2)二元体系的汽液平衡数据,所得结果经检验符合热力学一致性。用Wilson方程对所测的汽液平衡数据进行了关联,求出了Wilson方程交互作用参数,并对汽液平衡的计算值与实验值进行了比较,发现二者偏差较小,可以满足工程上环己烯、环氧环己烷分离设计的需要。Using dioxygen as oxidizing agent to conduct the green oxidation of cyclohexene is highly desirable because of its environmental compatibility and economic impact. Separation of the cyclohexene oxidation products depends on the reliable vapor-liquid equilibrium （VLE） data of relevant components, which are still lacking. The VLE data of cyclohexene and 1,2-epoxycyclohexane binary system under ambient pressure were measured by using an improved VLE equipment of EC-2 still in this work. The results show that this binary system has no azeotropic point. Furthermore, the experimental VLE data were correlated with the Wilson thermodynamic model and the corresponding binary interaction parameters of the model were obtained. The calculation shows that the VLE data agree well with the model and all experiment data pass the thermodynamic consistency test of Herrington.

关 键 词：汽液平衡 环己烯 环氧环己烷 WILSON方程 

分 类 号：O642.42[理学—物理化学] O624.12[理学—化学]