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Numerical Investigation of Resonance Behaviour of a Tubular Packed‐Bed Reactor with Non‐Uniform Activity
Author(s) -
Jaree Attasak,
Hudgins Robert R.,
Budman Hector M.,
Silveston Peter L.,
Menzinger Michael
Publication year - 2004
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.5450820220
Subject(s) - inert , catalysis , packed bed , resonance (particle physics) , materials science , thermal , inlet , chemical engineering , chemistry , thermodynamics , atomic physics , chromatography , physics , organic chemistry , engineering , mechanical engineering
The effects of periodic temperature perturbations at the inlet of a packed‐bed catalytic reactor were investigated for a system of non‐uniform catalyst activity that could arise through catalyst deactivation. A simplified model consisting of zones of active catalyst and inert packing of similar thermal properties was assumed. Simulations showed that large amplification, expressed as gain, can occur. The largest gain is observed at a resonance frequency. Both gain and resonance frequency depend on the number of layers of active catalyst and inert packing, the depth of the inert packing and catalyst layers.