当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
7期
1161-1162,1165
,共3页
汽液相平衡%Wilson%NRTL%UNIQUAC%碳酸二甲酯%碳酸二乙酯
汽液相平衡%Wilson%NRTL%UNIQUAC%碳痠二甲酯%碳痠二乙酯
기액상평형%Wilson%NRTL%UNIQUAC%탄산이갑지%탄산이을지
vapor-Liquid Equilibrium%Wislson%NRTL%UNIQUAC%Dimethyl carbonate%Diethyl carbonate
在101.325 kPa 下，测定了碳酸二甲酯-碳酸二乙酯二元体系在不同平衡温度时的汽相和液相的折光率，并用事先测定的工作曲线拟合得到汽、液相的摩尔分率，用积分检验法检验其热力学一致性；用最小二乘法分别求出了碳酸二甲酯-碳酸二乙酯二元体系的液相活度系数 Wilson, NRTL 和 UNIQUAC 模型参数，由这些模型参数推算的结果与实验数据吻合很好。
在101.325 kPa 下，測定瞭碳痠二甲酯-碳痠二乙酯二元體繫在不同平衡溫度時的汽相和液相的摺光率，併用事先測定的工作麯線擬閤得到汽、液相的摩爾分率，用積分檢驗法檢驗其熱力學一緻性；用最小二乘法分彆求齣瞭碳痠二甲酯-碳痠二乙酯二元體繫的液相活度繫數 Wilson, NRTL 和 UNIQUAC 模型參數，由這些模型參數推算的結果與實驗數據吻閤很好。
재101.325 kPa 하，측정료탄산이갑지-탄산이을지이원체계재불동평형온도시적기상화액상적절광솔，병용사선측정적공작곡선의합득도기、액상적마이분솔，용적분검험법검험기열역학일치성；용최소이승법분별구출료탄산이갑지-탄산이을지이원체계적액상활도계수 Wilson, NRTL 화 UNIQUAC 모형삼수，유저사모형삼수추산적결과여실험수거문합흔호。
Refractive indexes of vapor phase and liquid phase in the binary system of dimethyl carbonate (DMC)-diethyl carbonate (DEC) at different equilibrium temperature under 101.325 kPa were determined. Vapor-Liquid mole fraction was got with working curve fitting, integral testing was used to test the thermodynamic consistency; liquid activity coefficient of Wilson, NRTL and UNIQUAC model parameters was obtained by using the method of least squares, the results could well correlate with experimental results.
