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Thermophysical Properties, Hydrate and Phase Behaviour Modelling in Acid Gas-Rich Systems

Abstract : In this communication we present experimental techniques, equipment and thermodynamic modelling for investigating systems with high acid gas concentrations and discuss experimental results on the phase behaviour and thermo-physical properties of acid gas-rich systems. The effect of high CO 2 concentration on density and viscosity were experimentally and theoretically investigated over a wide range of temperature and pressures. A corresponding-state model was developed to predict the viscosity of the stream and a volume corrected equation of state approach was used to calculate densities. The phase envelope and the hydrate stability (in water saturated and under-saturated conditions to assess dehydration requirements) of some acid gas-rich fluids were also experimentally determined to test a generalized model, which was developed to predict the phase behaviour, hydrate dissociation pressures and the dehydration requirements of acid gas rich gases.
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Submitted on : Tuesday, January 5, 2016 - 2:15:14 PM
Last modification on : Wednesday, November 17, 2021 - 12:32:16 PM
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  • HAL Id : hal-01250877, version 1


Antonin Chapoy, Rod Burgass, Bahman Tohidi, Martha Hajiw, Christophe Coquelet. Thermophysical Properties, Hydrate and Phase Behaviour Modelling in Acid Gas-Rich Systems. AGIS, May 2015, BANFF, Canada. ⟨hal-01250877⟩



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