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The parameter domain of convective instability of the adiabatic packed‐bed reactor
Author(s) -
Yakhnin Vladimir,
Rattanayotsakun Sorathep,
Jaree Attasak,
Menzinger Michael
Publication year - 2015
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22296
Subject(s) - instability , exothermic reaction , packed bed , adiabatic process , convective instability , convection , mechanics , convective flow , parameter space , perturbation (astronomy) , convective heat transfer , sensitivity (control systems) , parametric statistics , materials science , thermodynamics , physics , chemistry , chromatography , mathematics , engineering , geometry , statistics , quantum mechanics , electronic engineering
Packed‐bed reactors (PBR) can exhibit two types of convective instability: dynamic or differential‐flow instability (DIFI), and static instability, commonly referred to as parametric sensitivity (PS). DIFI and PS both amplify external perturbations and may result in reactor temperature excursions that can damage the product and the reactor itself. The convective character of DIFI and PS manifests itself physically in the return of the reactor to its initial stationary state after the external perturbation subsides. In this paper we describe a method of mapping the convective instability domain in the parameter space of a PBR and illustrate its application using a simple reactor model involving the standard exothermic reaction A → B + heat .