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McAllister三体模型被普遍认为是针对液体混合物黏度的最佳关联式。本文在对三类(醇类/醇类、烷烃/烷烃、烷烃/醇类)二元混合物黏度数据进行文献收集的基础上,发现McAllister模型中的相互作用参数(v12和/21)随混合物的等效分子量和温度呈现出规律性的变化。因此,本文建立了一种改进的McAllister三体模型,并对乙醇与醇类(包括丙醇、丁醇、戊醇、己醇、庚醇、辛醇、壬醇、癸醇),正丁基环己烷与烷烃(包括庚烷、辛烷、壬烷、癸烷、十二烷、十四烷),异辛烷与醇类(包括丙醇、戊醇、己醇、庚醇)的黏度进行了计算,计算结果表明,计算值与实验值之间的总体平均绝对偏差为1.00%,最大偏差为9.75%。
The McAllister three-body model is generally considered to be the best correlation for the viscosity of a liquid mixture. Based on a literature review of the literature data on the viscosity data of three binary mixtures (alcohols / alcohols, alkanes / alkanes, alkanes / alcohols), it was found that the interaction parameters (v12 and / 21) in the McAllister model Equivalent molecular weight and temperature show a regular change. Therefore, an improved McAllister three-body model was established in this paper. The effects of ethanol and alcohols (including propanol, butanol, pentanol, hexanol, heptanol, octanol, nonanol and decanol) The viscosities of alkanes and alkanes (including heptane, octane, nonane, decane, dodecane, tetradecane), isooctane and alcohols (including propanol, amyl alcohol, hexanol, heptanol) The calculation and calculation results show that the overall average absolute deviation between the calculated value and the experimental value is 1.00% and the maximum deviation is 9.75%.