Mixing and segregation in a liquid fluidized bed of particles with different size and density

Authors

  • B. K. Dutta,

    Corresponding author
    1. Department of Chemical Engineering, Calcutta University, 92, Acharya P.C. Road7 Calcutta — 700009, India
    Current affiliation:
    1. National Bureau of Standards, boulder, Colorado
    • National Bureau of Standards, boulder, Colorado
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  • Suman Bhattacharya,

    1. Department of Chemical Engineering, Calcutta University, 92, Acharya P.C. Road7 Calcutta — 700009, India
    Current affiliation:
    1. ONGC, Bombay High
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  • S.K Chaudhury,

    1. Department of Chemical Engineering, Calcutta University, 92, Acharya P.C. Road7 Calcutta — 700009, India
    Current affiliation:
    1. UDCT, Matunga, Bombay
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  • B. Barman

    1. Department of Chemical Engineering, Calcutta University, 92, Acharya P.C. Road7 Calcutta — 700009, India
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Abstract

Experimental studies have been carried out on fluidization of irregular particle mixtures of different size and density. The mixing and segregation phenomena could be interpreted on the basis of the diffusion model of Kennedy and Bretton. The dependence of computed particle dispersion coefficient on liquid velocity, particle density and size has been discussed.

Abstract

Nous avons effectué des études expérimentales sur la fluidisation de mélanges de particules de taille et de densité différentes. Les phénomènes de ségrégation et de mélange peuvent êre interprétés à partir du modèle de diffusion de Kennedy et Bretton. Nous avons étudié l'influence de la vitesse du liquide ainsi que de la densité de la taille des particules sur le coefficient de dispersion des particules calculé.

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