A comparison of solids fluxes in a pair of downer and riser reactors

Jeffrey S. Ball, Jesse Zhu

Research output: Journal PublicationArticlepeer-review

8 Citations (Scopus)


A direct comparison on solids flux was enabled by measurements obtained in a pair of riser and downer circulating fluidized bed reactors, of the same diameter, using suction probes. The operating conditions and the axial position were found to affect the solids flux in each reactor in a different manner. The solids flux in the riser were affected to a large degree by the gas velocity, in contrast with the downer where no visible effect was detected from changes in the gas velocity. The axial position has an effect on the shape of the solids flux profiles in the downer, but only small effects were observed in the riser. On the other hand, increases in overall solids flux leads to the increase of local solids flux in both the downer and the riser.

Original languageEnglish
Pages (from-to)701-705
Number of pages5
JournalChemical Engineering and Technology
Issue number8
Publication statusPublished - Aug 2000
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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