Flow characteristics of the liquid-solid circulating fluidized bed

Wugeng Liang, Shuliang Zhang, Jing Xu Zhu, Yong Jin, Yu Zhiqing Yu, Zhanwen Wang

Research output: Journal PublicationArticlepeer-review

133 Citations (Scopus)


A new fluidization regime, the circulating fluidization regime, is identified for the upwards liquid-solid fluidization operation. This circulating fluidization regime is characterized by non-uniform radial distribution of liquid velocity, particle velocity and particle hold-up in the bed, different from the conventional fluidization regime and the transport regime where the radial flow structure is more uniform. Because of the radial non-uniform flow structure, the flow behaviours in the circulating fluidization regime cannot be predicted with the empirical relationships based upon homogeneous fluidization.

Original languageEnglish
Pages (from-to)95-102
Number of pages8
JournalPowder Technology
Issue number2
Publication statusPublished - 1 Feb 1997
Externally publishedYes


  • circulating fluidization regime
  • flow characteristics
  • liquid-solid system
  • operation regimes

ASJC Scopus subject areas

  • Chemical Engineering (all)


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