Cocurrent gas-solid downflow fluidized bed (downer) reactors: (III). Gas and solid mixing

Fei Wei, Jingxu Zhu

Research output: Journal PublicationArticlepeer-review

2 Citations (Scopus)


The axial gas and solids dispersions in the downer are much smaller than that in riser, while the radial gas-solid mixing is comparable between the two, making downer reactor a far better candidate for short contact time reactions where the intermediates are the desired product. Available measurement techniques and reported experimental results of gas and solid mixing are summarized, and analysis is provided for the mixing mechanism in the downer reactor. The different mixing phenomena in risers and downers are also compared.

Original languageEnglish
Pages (from-to)436-437
Number of pages2
JournalHuaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology
Issue number4
Publication statusPublished - 1996
Externally publishedYes


  • Backmixing, residence time distribution
  • Downer reactors
  • Gas and solid mixing

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)


Dive into the research topics of 'Cocurrent gas-solid downflow fluidized bed (downer) reactors: (III). Gas and solid mixing'. Together they form a unique fingerprint.

Cite this