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The effect of Lewis number on the stability of a catalytic reaction
Author(s) -
Lee James C. M.,
Luss Dan
Publication year - 1970
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690160419
Subject(s) - lewis number , lewis acids and bases , catalysis , chemistry , porosity , pellet , stability (learning theory) , transient (computer programming) , thermodynamics , chemical reaction , materials science , organic chemistry , physics , composite material , computer science , combustion , operating system , machine learning
An extensive numerical study was carried out to determine the effect of Lewis number on the stability of a chemical reaction occurring inside a porous catalyst pellet. It is found that when the Lewis number is different from 1, the coupling between the concentration and temperature causes several pathological effects during the transient periods. One of the most interesting phenomenon is the occurrence of a unique unstable steady state with a periodic appearance of a very hot spot.