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| Równanie stanu Penga-Robinsona× | Model PFR× | |
|---|---|---|
| Dziedzina | Fizyka stosowana | Fizyka stosowana |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1976 | 1962 |
| Twórca≠ | Ding-Yu Peng and David Bernard Robinson | Octave Levenspiel |
| Typ≠ | Equation of state; thermodynamic property correlation | Mathematical model for plug-flow reactor |
| Źródło pierwotne≠ | Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64. DOI ↗ | Levenspiel, O. (1999). Chemical Reaction Engineering (3rd ed.). John Wiley & Sons. ISBN: 978-0-471-25424-9 |
| Inne nazwy≠ | PR-EOS, Peng-Robinson model | ideal tubular reactor, plug-flow model, PFR |
| Pokrewne≠ | 4 | 3 |
| Podsumowanie≠ | 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. | The PFR (Plug Flow Reactor) model describes the behavior of a tubular reactor in which fluid elements move through as distinct plugs with no axial mixing. Fluid at the inlet is freshly unreacted; as it travels downstream, reactions progress. This idealized model, formalized by Octave Levenspiel alongside CSTR theory, is the opposite extreme: while CSTRs are fully mixed, PFRs have no axial mixing. In practice, PFRs achieve higher conversion than CSTRs for the same residence time and are widely used in the chemical and petroleum industries. |
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