Correlation of Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

摘要: A correlation based on an extensive literature database was proposed to estimate the infinite-dilution diffusion coefficients in supercritical fluids. The input parameters required for are temperature, solute molar mass, density near ambient solvent critical density, and reduced density. total average absolute deviation (AAD%) of prediction is 6.55% 153 binary systems 1968 data points over temperature range 1.00−1.78, 0.21−2.34, mass 58.08−885.40 g/mol, ambient-temperature 0.63−2.04 g/cm3. Introduction into this new makes it possible predict with reasonable accuracy diffusivities fluids a wide range.