Journal
CHEMICAL ENGINEERING SCIENCE
Volume 63, Issue 6, Pages 1480-1489Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2007.11.031
Keywords
packed-bed reactor; thermal instability; dynamic instability; resonance; disturbance amplification; operational safety
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In response to transient perturbations, the packed-bed reactor (PBR) can exhibit dynamic thermal instability in the form of resonant amplification of process disturbances. Based on linearized PBR model we derive estimates of the resonance frequency, the frequency range where amplification takes place and the maximum amplification. We also discuss the velocity of perturbation waves and how nonlinearity of reactor response to finite-size perturbations limits the amplification predicted by the linear analysis, (C) 2007 Elsevier Ltd. All rights reserved.
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