Effects of particle properties on flow structure in a 2-D circulating fluidized bed: Solids concentration distribution and flow development

Jing Xu, Jesse Zhu

Research output: Journal PublicationArticlepeer-review

21 Citations (Scopus)

Abstract

The effects of particle properties (particle density, size and sphericity) on solids concentration in a 2-D riser were comprehensively investigated by measuring the axial and lateral solids concentration with an optical fiber probe. In this study, solids concentration of different types of particles shows that heavier particles have higher solids concentration laterally and axially than lighter particles; larger particles result in more compact solids distribution and such size effect is more evident at the riser bottom; more spherical particles lead to higher solids concentration. Various forces acting on particles and the change in the slip velocity between gas and particles were used to explain the effects of particle properties on solids distribution.

Original languageEnglish
Pages (from-to)5064-5076
Number of pages13
JournalChemical Engineering Science
Volume66
Issue number21
DOIs
Publication statusPublished - 1 Nov 2011
Externally publishedYes

Keywords

  • 2-D CFB
  • Fluidization
  • Hydrodynamics
  • Optical fiber probe
  • Particle properties
  • Solids concentration

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Industrial and Manufacturing Engineering

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