Temperature dependency of the group interaction parameters in the AGSM and UNIFAC models for the prediction of heats of mixing
Date of Award
Master of Science in Chemical Engineering - (M.S.)
Chemical Engineering and Chemistry
Dimitrios P. Tassios
Mahmoud F. Abd-El-Bary
A four-parameter group-contribution model (UNIFAC) has been developed for the prediction of heats of mixing of non-electrolyte mixtures. Both the UNIFAC and AGSM models are evaluated over a wide range of temperature dependencies of the group interaction parameters. The UNIFAC model has been chosen over the AGSM model and an optimum parameter-temperature relationship has been established.
Adopting the optimum temperature dependency, group inter-action parameters have been calculated using UNIFAC for the prediction of four types of mixtures: n-Alcohols/n-Alkanes; Benzene/n-Alkanes; Nitriles/n-Alkanes; Amines/n-Alkanes.
Ojini, Ignatius Okoronkwo, "Temperature dependency of the group interaction parameters in the AGSM and UNIFAC models for the prediction of heats of mixing" (1980). Theses. 2113.