The performance of UNIFAC and related group contribution models part I. Prediction of infinite dilution activity coefficients

PAKSOY H. Ö., Örnektekin S., Balcl B., Demirel Y.

Thermochimica Acta, vol.287, no.2, pp.235-249, 1996 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 287 Issue: 2
  • Publication Date: 1996
  • Doi Number: 10.1016/s0040-6031(96)02958-9
  • Journal Name: Thermochimica Acta
  • Journal Indexes: Scopus
  • Page Numbers: pp.235-249
  • Keywords: Activity coefficient, Infinite dilution, UNIFAC, UNIFAC-FV
  • Hatay Mustafa Kemal University Affiliated: Yes

Abstract

Infinite dilution activity coefficients have been calculated for 24 systems including highly non-ideal and nearly non-ideal using original, modified UNIFAC and UNIFAC-FV models. The calculations are compared with experimental results. The performance of the models in predictions and the significance of free volume effects on solvent activities in solutions containing small compounds are discussed.