基于ASOG-VISCO基团贡献理论的胺类溶液黏度模型

Calculation of Kinematic Viscosity for Mixtures Containing Tertiary Amines Based on the ASOG-VISCO Group Contribution Model

收集了三乙胺、三丙胺、三正丁胺与正己烷、正辛烷、异辛烷、正十四烷、2-戊酮、3-戊酮、4-甲基-2-戊酮、三氯甲烷、苯、环己烷以及醇类物质所组成的16种含有胺类物质二元溶液的运动黏度实验数据,并且结合绝对速率理论以及ASOG基团贡献法建立了一种用以计算胺类混合溶液运动黏度的理论模型,利用文献实验数据在该模型的基础上回归得到了新的基团对:N-CH_(2),N-OH,N-CO,N-CCl_(3),N-ArCH,N-CyCH的交互作用参数,采用该模型与回归得到的参数对含胺类物质的二元溶液运动粘度的计算值与实验测量数据的绝对平均偏差为1.594%,同时,该模型也被用于对含胺类物质的三元混合溶液黏度的推算,理论预测值与实验值之间的绝对平均偏差为5.379%,在实际工程应用中可以满足需要。

The kinematic viscosities of 16 binary liquid mixtures were calculated by using a viscosity model based on the Eyring’s absolute rate theory combined with the ASOG group contribution method, the study systems include binary mixtures of triethylamine, tripropylamine, tributylamine with n-hexane, n-octane, iso-octane, n-tetradecane, methanol, ethanol, 2-pentanone, 3-pentanone, 4-methyl-2-pentanone, chloroform, benzene and cyclohexane, the new ASOG group pair parameters of N-CH_(2),N-OH,N-CO,N-CCl_(3),N-ArCH,N-CyCH were determined with the experimental kinematic viscosities from literatures, the viscosity model with the new interaction parameters were extended to calculate kinematic viscosities for binary and ternary liquid mixtures containing tertiary amines, the overall average deviations between calculated and experimental values were 1.594% and 5.397% respectively.