o-,m-,p-二甲苯或乙苯加乙醇体系的汽液相平衡  

Vapor liquid Equilibrium of o-,m-,p-Xylene and Ethyl Benzene Ethanol Systems

作　　者：黄钟奇[1] 陈勇[1] 欧阳钢锋[1] 曾兰珍[1] 邹永匡[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275

出　　处：《中山大学学报（自然科学版）》1999年第6期116-119,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省自然科学基金! ( 980 3 1 5 )

摘　　要：在99992kPa压力下用Ellis汽液平衡釜测定了乙醇+邻二甲苯、乙醇+间二甲苯、乙醇+对二甲苯和乙醇+乙苯4个二元体系的汽液平衡数据,并进行了恒压下热力学一致性的检验.用Wilson和UNIQUAC方程关联了实验数据,拟合精度令人满意.Isobaric vapor liquid equilibrium data were determined in an Ellis still at 99 992 kPa for ethanol+ o xylene, ethanol+ m xylene, ethanol+ p xylene and ethanol+ethyl bebzene, respectively A thermodynamic model proposed by Hayden O'Connell for accounting the nonideal behavior of the vapor phase and liquid phase was used for calculating the activity coefficient of liquid phase All the experimental data have been tested by the method proposed by Herington and the results show that the experimental data conform to the demand of thermodynamic consistency Wilson and UNIQUAC equations were selected to correct the composition and the activity coefficients of the corresponding liquid phases. The calculated values are in good agreement with experimental data

关 键 词：汽液平衡 乙醇 乙甲苯 乙苯 二元体系 

分 类 号：O642.543[理学—物理化学] O642.42[理学—化学]