C_(11)-C_(14)烷烃与月桂酸甲酯体系等压汽液平衡  

Isobaric Vapor-Liquid Equilibrium for C_(11)-C_(14) Alkane + Methyl Dodecanoate System

作　　者：罗慧娟[1] 夏淑倩[1] 

机构地区：[1]天津大学化工学院化学工艺系,天津300072

出　　处：《高校化学工程学报》2015年第3期731-735,共5页Journal of Chemical Engineering of Chinese Universities

摘　　要：在5.00 k Pa下,用Rose釜测定了正十一烷-月桂酸甲酯、正十二烷-月桂酸甲酯、正十三烷-月桂酸甲酯和正十四烷-月桂酸甲酯4个二元体系的汽液平衡数据,并对所测数据进行了热力学一致性检验,结果表明所有的实验数据均符合热力学一致性。分别用NRTL、UNIQUAC和Wilson活度系数模型对实验数据进行关联,得到了各个模型的二元交互作用参数,并用这三个模型及得到的参数计算了平衡温度及汽相组成,计算结果与实验数据吻合较好。Isobaric vapor-liquid equilibrium （VLE） data for four binary systems of n-Undecane ＋ Methyl dodecanoate, n-Dodecane ＋ Methyl dodecanoate, n-Tridecane ＋ Methyl dodecanoate and n-Tetradecane ＋ Methyl dodecanoate were measured at 5.00 kPa by a Rose still, and the thermodynamic consistencies of all the measured data were checked. The results show that the experimental data satisfy the examination of thermodynamic consistencies. The experimental data were correlated by NRTL, UNIQUAC and Wilson acitivity coefficient model and the corresponding parameters for the three models were obtained. The three models with the obtained parameters were used to calculate the temperatures and the vapor compositions. The calculation results agree well with the experimental data.

关 键 词：汽液平衡 直链烷烃 月桂酸甲酯 活度系数模型 

分 类 号：TQ221.1[化学工程—有机化工] O642.42[理学—物理化学]