Viscosity, Second pVT Virial Coefficient, and Diffusion of Binary Mixtures of Small Alkanes CH4, C2H6, C3H8, n-C4H_(10), i-C4H_(10), n-C5H_(12), i-C5H_(12), and C(CH3)4 Predicted by Means of an Isotropic Temperature-Dependent Potential

摘要

The isotropic (n-6) Lennard-Jones temperature-dependent potential (LJTDP) together with the Hohm—Zarkova— Damyanova mixing rales is used to predict second interaction pVT virial coefficients B_(AB)(T), interaction viscosities η_(AB)(T), and diffusion coefficients D_(AB)(T) for all 28 binary mixtures of the alkanes CH4, C2H6, C3H8, n-C4H_(10), i-C4H_(10), n-C5H_(12), i-C5H_(12), and C(CH3)4 at low densities. Where possible, the obtained equilibrium and transport data are compared to existing measurements. In general, good agreement is found between experiment and theory. On the basis of these findings, fitting formulas and tables are presented which allow for a fast and reliable estimation of the aforementioned properties in the temperature range between (180 and 1200) K.