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Prediction of binary diffusion coefficients of solutes in supercritical solvents
Author(s) -
He ChaoHong
Publication year - 1997
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690431107
Subject(s) - supercritical fluid , thermodynamics , diffusion , binary number , chemistry , solvent , volume (thermodynamics) , organic chemistry , mathematics , physics , arithmetic
New correlations, based on the rough hard‐sphere theory and an extensive literature database, were developed for the determination of the binary diffusion coefficients of liquid and solid solutes in supercritical solvents. The correlations were tested to predict 107 solute‐solvent systems with good results. The input data required for the correlations are the solute molecular weight, temperature, density and the solvent basic properties (molecular weight, critical volume, and critical pressure).