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Graphical calculation of multiple steady states and effectiveness factors for porous catalysts
Author(s) -
Stewart Warren E.,
Villadsen John V.
Publication year - 1969
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.690150111
Subject(s) - nonlinear system , collocation (remote sensing) , simple (philosophy) , steady state (chemistry) , rate equation , collocation method , porosity , porous medium , reaction rate , mechanics , variable (mathematics) , mathematics , materials science , statistical physics , thermodynamics , catalysis , chemistry , computer science , mathematical analysis , physics , classical mechanics , kinetics , differential equation , composite material , ordinary differential equation , philosophy , biochemistry , epistemology , quantum mechanics , machine learning
Simple graphical methods are given for predicting the effectiveness factors of single reactions in particles of various shapes. A collocation procedure is used for small particles, and the known asymptotic solution is used for large particles. Multiple steady states and variable fluid properties can be handled directly. Examples are given for several nonlinear reaction rate laws.