A Numerical Comparison of Soave Redlich Kwong and Peng-Robinson Equations of State for Predicting Hydrocarbons’ Thermodynamic Properties


  • B. Hussain School of Chemical and Material Engineering, National University of Sciences and Technology, Islamabad, Pakistan
  • M. Ahsan School of Chemical & Materials Engineering, National University of Sciences and Technology, Pakistan
Volume: 8 | Issue: 1 | Pages: 2422-2426 | February 2018 | https://doi.org/10.48084/etasr.1644


Mixture phase equilibrium and thermodynamic properties have a significant role in industry. Numerical analysis of flash calculation generates an appropriate solution for the problem. In this research, a comparison of Soave Redlich Kwong (SRK) and Peng-Robinson (PR) equations of state predicting the thermodynamic properties of a mixture of hydrocarbon and related compounds in a critical region at phase equilibrium is performed. By applying mathematical modeling of both equations of states, the behavior of binary gases mixtures is monitored. The numerical analysis of isothermal flash calculations is applied to study the pressure behavior with volume and mole fraction. The approach used in this research shows considerable convergence with experimental results available in the literature.


Peng-Robinson, Soave Redlich-Kwong, equation of state, mathematical modeling, flash calculation, methane, carbon dioxide, hydrogen


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How to Cite

B. Hussain and M. Ahsan, “A Numerical Comparison of Soave Redlich Kwong and Peng-Robinson Equations of State for Predicting Hydrocarbons’ Thermodynamic Properties”, Eng. Technol. Appl. Sci. Res., vol. 8, no. 1, pp. 2422–2426, Feb. 2018.


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