What types of systems is the NRTL-RK thermodynamic equation suitable for?
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As the title suggests, for what types of systems is the NRTL-RK thermodynamic equation suitable for simulation? I would appreciate the guidance of the experts.
Chemical solvents absorb CO2, H2S.....
Similar to NTRL, the RK method is used for the gas phase instead of the ideal gas method.
NRTL is equivalent to the phase equilibrium of polar systems.
The calculation of the activity coefficient part uses the NRTL equation, while the calculation of the fugacity coefficient uses the RK equation. This is a combined thermodynamic equation that is widely used for polar systems and is relatively accurate.
The chosen approach is correct! It is suitable for non-ideal polar systems in both liquid and gas phases! The activity coefficient for the liquid phase is based on the NRTL equation, while the fugacity of the gas phase is determined using the SRK or PR equations for real gases