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On the pseudo steady state approximation for gas solid reactions
Author(s) -
Luss Dan
Publication year - 1968
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.5450460303
Subject(s) - steady state (chemistry) , mass transfer , diffusion , thermodynamics , reaction rate , physics , heavy traffic approximation , transfer (computing) , solid state , mechanics , mathematical analysis , materials science , chemistry , mathematics , computer science , biochemistry , statistics , parallel computing , catalysis
A method to obtain bounds on the integral and instantaneous rate of diffusion and mass transfer controlled gas solid reactions in spherical particles is developed. It is shown that the pseudo steady approximation is valid during most stages of reaction even under time dependent ambient conditions.