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 CO2 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.
|Title of host publication||Acid Gas Extraction for Disposal and Related Topics|
|Publication status||Published - 5 Feb 2016|
Chapoy, A., Burgass, R. W., Tohidi Kalorazi, B., Hajiw, M., & Coquelet, C. (2016). Thermophysical Properties, Hydrate and Phase Behaviour Modelling in Acid Gas-Rich Systems. In Acid Gas Extraction for Disposal and Related Topics (pp. 115-139). Wiley.