Methane solubility in aqueous solutions under two-phase (H-Lw) hydrate equilibrium conditions

Ioannis N. Tsimpanogiannis, Ioannis Economou, Athanassios K. Stubos

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We report a detailed review of thermodynamic models and experimental data of gas solubilities in aqueous solutions, under hydrate formation conditions. In the current study we are mainly interested in describing the methane solubility in water under two-phase (Hydrate-Liquid water) equilibria, while we also briefly examine the case of methane solubility in water under three-phase (Hydrate-Liquid-Vapor) equilibria. To this purpose we use different computational models that couple: (i) an Equation of State for fugacity calculations, (ii) the van der Waals-Platteeuw theory from Statistical Thermodynamics for hydrate equilibrium calculations, and (iii) models that calculate the methane solubility in aqueous solutions. The methane-solubility results that are predicted by the examined models are compared against all available experimental data from the literature. Good agreement is observed between predictions and experimental data, considering that the methane solubility in water is very low under the pressure and temperature conditions that were examined in this study.

Original languageEnglish
Pages (from-to)106-120
Number of pages15
JournalFluid Phase Equilibria
Volume371
DOIs
Publication statusPublished - 15 Jun 2014

Fingerprint

Methane
Hydrates
hydrates
methane
solubility
Solubility
aqueous solutions
Water
water
thermodynamics
Statistical mechanics
liquid-vapor equilibrium
Equations of state
Phase equilibria
equations of state
Gases
Thermodynamics
Liquids
liquids
predictions

Keywords

  • Hydrate equilibria
  • Methane solubility
  • Van der Waals-Platteeuw theory

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Methane solubility in aqueous solutions under two-phase (H-Lw) hydrate equilibrium conditions. / Tsimpanogiannis, Ioannis N.; Economou, Ioannis; Stubos, Athanassios K.

In: Fluid Phase Equilibria, Vol. 371, 15.06.2014, p. 106-120.

Research output: Contribution to journalArticle

Tsimpanogiannis, Ioannis N. ; Economou, Ioannis ; Stubos, Athanassios K. / Methane solubility in aqueous solutions under two-phase (H-Lw) hydrate equilibrium conditions. In: Fluid Phase Equilibria. 2014 ; Vol. 371. pp. 106-120.
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