论文部分内容阅读
本文应用液上气相色谱法测定了乙醇－乙酸丁酯二元系统在３０．０℃，４０．０℃、４５．０℃下的气液平衡数据，在此温度范围内的数据未见文献发表。本文所测气液平衡数据经Ｈｅｒｉｎｇｔｏｎ法校验均满足热力学一致性要求。采用单纯形法优化出该二元系统在３０．０℃～８０．０℃范围内的ＮＲＴＬ模型参数，拟合中将文献［１］中６０．０℃、７０．０℃，８０．０℃的数据与本文数据一起关联，并把ＮＲＴＬ模型参数表示为温度的线性函数。拟合结果精度较高。
In this paper, gas-liquid equilibrium data of ethanol-butyl acetate binary system at 30.0 ℃, 40.0 ℃ and 45.0 ℃ were determined by liquid chromatography, and the data in this temperature range were not published . The gas-liquid equilibrium data measured by this paper meet the requirements of thermodynamic consistency by the Herington method. The simplex method was used to optimize the NRTL model parameters of the binary system in the range of 30.0 ° C ~ 80.0 ° C. In the fitting, the parameters of 60.0 ° C, 70.0 ° C, 80.0 ° C The data is associated with the data in this paper and the NRTL model parameters are expressed as a linear function of temperature. Fitting results with high accuracy.