Gas solubility measurement and modeling for methane-water and methane-ethane-n-butane-water systems at low temperature conditions

Antonin Chapoy, Amir H. Mohammadi, Dominique Richon, Bahman Tohidi

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

In this communication, experimental measurements and thermodynamic modeling of solubilities of methane and a hydrocarbon gas mixture (94% methane + 4% ethane + 2% n-butane) in water at low temperature conditions are reported. Methane solubility measurements have been conducted at a temperature range of 275.11-313.11 K and pressures up to 18 MPa. The solubility of the individual components in the gas mixture was measured from 278.14 to 313.12 K and pressures up to 14.407 MPa. A static-analytic apparatus, taking advantage of a pneumatic capillary sampler is used for fluid sampling. The Valderrama modification of the Patel-Teja equation of state combining with non-density dependent mixing rules were used for modeling gas solubilities in water. The data generated in this work are compared with the literature data and the predictions of the thermodynamic model, demonstrating the reliability of the techniques used in this work. © 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)113-121
Number of pages9
JournalFluid Phase Equilibria
Volume220
Issue number1
DOIs
Publication statusPublished - 15 Jun 2004

Keywords

  • AAD
  • average absolute deviation
  • binary interaction parameter
  • BIP
  • FID
  • flame ionization detector
  • FOB
  • NDD
  • non-density dependent mixing rules
  • objective function
  • PID
  • proportional integrator derivative controller
  • TCD
  • thermal conductivity detector
  • VPT-EoS

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