Analysis of gas flow in fluidized bed reactors

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Abstract

Gas flow distribution and the cross-sectional areas occupied by the bubble and participate phases in a fluidized bed are examined for the models of Partridge and Rowe, Kunii and Levenspiel, and Fryer and Potter. It has been shown that for these models there exists a critical value of fluidizing gas velocity, defined as the gas velocity at which the area of one of the phases becomes equal to the total cross-sectional area of the bed. For a given set of model parameters the value of the critical fluidizing gas velocity can be predicted. Existence of such a critical velocity imposes restrictions on the applicability of these models. Some modifications of the Partridge-Rowe model are proposed in order to extend the region of validity of this model while retaining its basic features.

Original languageEnglish
Pages (from-to)120-123
Number of pages4
JournalIndustrial and Engineering Chemistry Fundamentals
Volume17
Issue number2
Publication statusPublished - 1978
Externally publishedYes

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ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Engineering(all)
  • Environmental Science(all)
  • Polymers and Plastics

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