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| Modello PFR× | Distillazione reattiva× | |
|---|---|---|
| Campo | Fisica applicata | Fisica applicata |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1962 | 1995 |
| Ideatore≠ | Octave Levenspiel | Klaus Sundmacher |
| Tipo≠ | Mathematical model for plug-flow reactor | Integrated reaction-separation process model |
| Fonte seminale≠ | Levenspiel, O. (1999). Chemical Reaction Engineering (3rd ed.). John Wiley & Sons. ISBN: 978-0-471-25424-9 | Sundmacher, K., & Kienle, A. (2003). Reactive Distillation: Status and Future Directions. Wiley-VCH. ISBN: 978-3-527-30623-9 |
| Alias | ideal tubular reactor, plug-flow model, PFR | integrated distillation-reaction, reactive column, reaction with separation |
| Correlati≠ | 3 | 4 |
| Sintesi≠ | 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. | Reactive distillation couples reaction and separation in a single column, where reactants are separated from products continuously while simultaneously undergoing reaction on catalytic trays. Pioneered in the 1990s by Klaus Sundmacher and others, this process intensification technique dramatically reduces capital cost, energy consumption, and environmental impact for suitable reactions. It is now industrially proven for esterification, hydration, and transesterification processes. |
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