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On the determination of kinetic parameters for the regeneration of cracking catalyst
Author(s) -
Morley K.,
De Lasa H. I.
Publication year - 1987
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.5450650510
Subject(s) - carbon monoxide , coke , catalysis , chemistry , combustion , cracking , reaction rate constant , carbon dioxide , oxygen , molar ratio , reaction rate , thermodynamics , inorganic chemistry , chemical engineering , organic chemistry , kinetics , physics , quantum mechanics , engineering
In the study of the regeneration of cracking catalyst, two approaches may be taken when determining the kinetic rate constant for the coke combustion reaction. A global coke burning rate equation may be considered, based on the observed oxygen concentration and carbon dioxide to carbon monoxide molar product ratio. This reaction may also be represented by an intrinsic coke burning equation which is a function of the oxygen concentration and the carbon dioxide to carbon monoxide molar ratio at the reaction site, combined with a carbon monoxide postcombustion equation. It is proposed in this paper that the rate constant for intrinsic coke burning, k c , is essentially equal to the global coke burning rate constant, k c , and that its value is independent of the rate equation chosen for the carbon monoxide post‐combustion reaction.