The sedimentation-dispersion model for slurry bubble columns with a conical distributor

F. A. Da Silva, F. F. Pironti, Avelino E Saez

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A mathematical model is presented to simulate the distribution of solid phase in slurry bubble columns with a conical entrance section. The model is based on the sedimentation-dispersion model that is commonly used to simulate solids distribution in cylindrical columns. The model equations are obtained from a mass balance of solids expressed in terms of a cross-sectional average of the solids concentration. The resulting differential equations are integrated numerically. The model was used to analyze the effect of the taper angle of a conical distributor on the suspension of solids in a cylindrical spouted bed with pilot scale dimensions. The effects of gas and slurry flow rates, and average feed solids concentrations are also studied. The results show that there is a range of operating conditions for which the solids concentration profile exhibits a maximum within the conical region. (from Authors)

Original languageEnglish (US)
Pages (from-to)157-170
Number of pages14
JournalChemical Engineering Communications
Volume138
StatePublished - 1995
Externally publishedYes

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Bubble columns
Sedimentation
Suspensions
Differential equations
Gases
Flow rate
Mathematical models

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

The sedimentation-dispersion model for slurry bubble columns with a conical distributor. / Da Silva, F. A.; Pironti, F. F.; Saez, Avelino E.

In: Chemical Engineering Communications, Vol. 138, 1995, p. 157-170.

Research output: Contribution to journalArticle

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