Premium
Prediction of heats of mixing of liquid mixtures by an analytical group solution model
Author(s) -
Nguyen T. H.,
Ratcliff G. A.
Publication year - 1974
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450520516
Subject(s) - mixing (physics) , thermodynamics , group contribution method , alkane , group (periodic table) , chemistry , binary number , range (aeronautics) , methylene , alcohol , experimental data , materials science , organic chemistry , mathematics , hydrocarbon , phase equilibrium , phase (matter) , physics , statistics , quantum mechanics , arithmetic , composite material
An analytical group solution model has been developed for the prediction of heats of mixing of liquid mixtures using the Wilson equation. This procedure obviates some of the limitations and inaccuracies of the previous model, and is well suited to computer calculation. It was tested for a wide range of alcohol/alkane mixtures and gives good results. The group Wilson parameters were generated from experimental data for methylene/hydroxyl mixtures at 15°C to 55°C. At temperatures within or close to this range, these group parameters allow prediction of heats of mixing of binary or multicomponent mixtures containing these two groups. No experimental data are required.