Gas hydrates in low water content gases: Experimental measurements and modelling using the CPA equation of state

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

In this communication, new experimental data are reported for the water content of methane and two synthetic gas mixtures in equilibrium with hydrates at pressures range from 5 to 40. MPa and temperature down to 251.65. K. The measurements have been made on equilibrated samples taken from a high-pressure variable volume hydrate cell using a new analyser based upon tuneable diode laser absorption spectroscopy (TDLAS) technology. A statistical thermodynamic approach, with the Cubic-Plus-Association equation of state, is employed to model the phase equilibria. The hydrate-forming conditions are modelled by the solid solution theory of van der Waals and Platteeuw. The thermodynamic model was used to predict the water content of methane and synthetic gases in equilibrium with gas hydrates. © 2009 Elsevier B.V.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalFluid Phase Equilibria
Volume296
Issue number1
DOIs
Publication statusPublished - Sep 2010

Keywords

  • CPA equation of state
  • Experimental data
  • Gas hydrate
  • Methane
  • Thermodynamic modelling
  • Water
  • Water content

Fingerprint Dive into the research topics of 'Gas hydrates in low water content gases: Experimental measurements and modelling using the CPA equation of state'. Together they form a unique fingerprint.

  • Cite this