Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Thermodynamic study of binary systems containing sulphur dioxide and nitric oxide: Measurements and modelling

Creton, Benoit, Nieto-Draghi, Carlos, Bruin, Theodorus de, Lachet, Veronique, Ahmar, Elise El, Valtz, Alain, Coquelet, Christophe, Lasala, Silvia, Privat, Romain, Jaubert, Jean-Noel
Fluid Phase Equilib. 2018, 461, 84-100
ABSTRACT
In this study, the thermodynamic behaviour of NO + SO2 mixtures has been investigated by means of molecular simulation, experiment and equation of state modelling. Quantum chemical calculation were performed to investigate possible chemical reactions between NO and SO2. Molecular simulations were based on Monte Carlo and Molecular Dynamics techniques using force fields available in the literature. Validation of simulated vapour liquid data for NO + SO2 binary mixtures was performed on the basis of proposed new experimental data, and new sets of parameters were optimized for the PPR78 EoS. We then moved our focus on the solubility of some gases (SOx, NOx, CO2, O2, N2) in water and brines studied by molecular simulations. We first compared performances of some combinations of salt and water intermolecular potentials in terms of density and osmotic pressure predictions. We then studied the evolution of Henry constant values for gases in brines considering various salt concentrations and temperatures.
Compounds
# Formula Name
1 O2S sulfur dioxide
2 NO nitrogen oxide (NO)
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • 1
  • Mole fraction - 2 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Liquid
  • Chromatography
  • 19