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    Solid holdup and circulation rate in a liquid-solid circulating fluidized bed with viscous liquid medium

    Access Status
    Open access via publisher
    Authors
    Gnanasundaram, N.
    Loganathan, M.
    Perumal, Kumar
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Gnanasundaram, N. and Loganathan, M. and Perumal, K. 2015. Solid holdup and circulation rate in a liquid-solid circulating fluidized bed with viscous liquid medium. Brazilian Journal of Chemical Engineering. 32 (4): pp. 849-856.
    Source Title
    Brazilian Journal of Chemical Engineering
    DOI
    10.1590/0104-6632.20150324s00003026
    ISSN
    0104-6632
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/8358
    Collection
    • Curtin Research Publications
    Abstract

    Experiments were conducted in a liquid-solid circulating fluidized bed with different viscous liquids and particles to study the hydrodynamics, average solid hold up and solid circulation rate. The effects of operating parameters, i.e., primary liquid flow rate in the riser, auxiliary liquid flow rate, total liquid flow rate and viscosity of the liquid were studied for solids of different density and particle size. Results show that the circulating fluidization regime starts earlier for more viscous solutions because of the decrease in critical transitional velocity. The onset of solid holdup increases with an increase in liquid viscosity for sand and for glass beads. The solid circulation rate increases with an increase in total velocity and auxiliary velocity, and also increases with increasing viscosity.

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