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CO oxidation on Pt: Model discrimination using experimental bifurcation behavior
Author(s) -
Graham W. R. C.,
Lynch D. T.
Publication year - 1987
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.690330512
Subject(s) - carbon monoxide , multiplicity (mathematics) , catalysis , bifurcation , steady state (chemistry) , platinum , chemistry , thermodynamics , volumetric flow rate , chemical engineering , mechanics , mathematics , physics , nonlinear system , organic chemistry , mathematical analysis , engineering , quantum mechanics
An experimental determination of the steady state behavior for the supported platinum catalyzed oxidation of carbon monoxide in a recycle reactor was performed. Steady state multiplicity was observed. The effects of the size of catalyst charge, feed flow rate, feed composition, and reactor temperature on the location of the boundaries of the steady state multiplicity region were determined. The sensitivity of these bifurcation points to variations in reactor parameters was used to discriminate among five reaction mechanisms. Only an elementary step model incorporating carbon monoxide self‐exclusion from the catalyst surface could quantitatively describe all observed steady state data. An explicit rate function based on this model is presented.