摘要
采用PR方程和MHV1混合规则结合Eyring绝对速率理论,建立了一种预测二元混合溶液高压黏度的模型。对9种二元溶液体系,包括6种烃类非水溶液和3种醇类水溶液在0.1 MPa与高压下的黏度进行了关联和预测,MHV1混合规则中的超额Gibbs自由能项GE分别由van Laar方程和Wilson方程计算。在0.1 MPa和高压时采用van Laar方程计算得到的黏度值与文献值的绝对平均偏差分别为0.87%与2.46%,优于采用Wilson方程时的计算结果。
PR equation of state and MHV1 mixing rule was combined with Eyring^s absolute rate theory to establish viscosity model for high-pressure viscosity prediction of binary mixtures. The viscosities of 9 binary systems, which include 6 non-aqueous hydrocarbon mixtures and 3 aqueous alcohols, were correlated and predicted at 0.1 MPa and high pressures. The excess Gibbs free energy GE in the MttV1 mixing rule was calculated by the van Laar equation and Wilson equation respectively. The average absolute deviation between the experimental and calculated viscosities using the van Laar equation is 0.87% and 2.46% at 0.1 MPa and high pressures respectively, it provides better results than the Wilson equation.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2013年第2期220-224,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51006083
No.50836004)
中央高校基本科研业务费专项资金资助项目
