The performance of UNIFAC and related group contribution models .1. Prediction of infinite dilution activity coefficients

Paksoy H., Ornektekin S., Balcl B., Demirel Y.

THERMOCHIMICA ACTA, cilt.287, sa.2, ss.235-249, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 287 Sayı: 2
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1016/s0040-6031(96)02958-9
  • Dergi Adı: THERMOCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.235-249
  • Anahtar Kelimeler: activity coefficient, infinite dilution, UNIFAC, UNIFAC-FV, POLYMER-SOLUTIONS, SOLVENT ACTIVITIES, LIQUID-EQUILIBRIUM, PHASE-EQUILIBRIA, WATER
  • Çukurova Üniversitesi Adresli: Evet

Özet

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.