Evaluation of the truncated perturbed chain-polar statistical associating fluid theory for complex mixture fluid phase equilibria

Eirini K. Karakatsani, Georgios M. Kontogeorgis, Ioannis Economou

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Perturbed chain-statistical associating fluid theory (PC-SAFT) was extended rigorously to polar fluids based on the theory of Stell and co-workers [Mol. Phys. 1977, 33, 987]. The new PC-PS AFT was simplified to truncated PC-PSAFT (tPC-PSAFT) so that it can be practical for real polar fluid thermodynamic calculations. In this work, tPC-PSAFT is generalized to multicomponent mixtures and evaluated for a wide range of highly nonideal polar mixtures. Binary and ternary mixtures of dipolar, quadrupolar, and/or associating fluids are examined. Vapor-liquid and liquid-liquid equilibria at low and high pressures are calculated. Comparisons against PC-SAFT calculations are made. It is shown that tPC-PSAFT is an accurate model for polar fluid mixture phase equilibria.

Original languageEnglish
Pages (from-to)6063-6074
Number of pages12
JournalIndustrial and Engineering Chemistry Research
Volume45
Issue number17
DOIs
Publication statusPublished - 16 Aug 2006
Externally publishedYes

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Complex Mixtures
Phase equilibria
Fluids
Liquids
Vapors
Thermodynamics

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Evaluation of the truncated perturbed chain-polar statistical associating fluid theory for complex mixture fluid phase equilibria. / Karakatsani, Eirini K.; Kontogeorgis, Georgios M.; Economou, Ioannis.

In: Industrial and Engineering Chemistry Research, Vol. 45, No. 17, 16.08.2006, p. 6063-6074.

Research output: Contribution to journalArticle

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