Countercurrent Backmixing Model for Fluidized Bed Catalytic Reactors. Applicability of Simplified Solutions

Colin Fryer, Owen E. Potter

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17 Citations (Scopus)


The countercurrent backmixing model for gas-fluidized catalytic reactors is studied using the assumptions of Kunii and Levenspiel concerning gas transfer between the bubble, cloud-wake, and dense phases. The various simplifications which have been made previously in the solution of this model are examined and their regions of applicability determined. The solutions obtained indicate several areas in which experimental study of reacting systems will be useful in assessing the validity of the model; in particular, concentration profiles in the bed will be useful in distinguishing between the countercurrent backmixing model and others.

Original languageEnglish
Pages (from-to)338-344
Number of pages7
JournalIndustrial and Engineering Chemistry Fundamentals
Issue number3
Publication statusPublished - 1 Aug 1972

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