Peng-Robinson Equation of State
The Peng-Robinson equation of state is a cubic model that describes the thermodynamic properties of pure fluids and mixtures. Introduced by Ding-Yu Peng and David Bernard Robinson in 1976, it improves upon earlier models (van der Waals, Redlich-Kwong) by better predicting compressibility factors and phase equilibria, especially near the critical point. It is widely used in petroleum engineering, chemical process design, and natural gas calculations.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64. · DOI 10.1021/i160057a011
- Reid, R. C., Prausnitz, J. M., & Sherwood, T. K. (1987). The Properties of Gases and Liquids (4th ed.). McGraw-Hill. · ISBN 978-0-07-051798-8
- Soave, G. (1972). Equilibrium constants from a modified Redlich-Kwong equation of state. Chemical Engineering Science, 27(6), 1197-1203. · DOI 10.1016/0009-2509(72)80096-4
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