Hydrodynamic properties in a cold-model dual fluidized-bed gasifier

Jeong Hoi Goo, Myung Won Seo, Dong Kyoo Park, Sang Done Kim, See Hoon Lee, Jae Goo Lee, Byung Ho Song

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


A cold model dual fluidized bed gasifier was designed and constructed to determine the hydrodynamic properties in a bubbling fluidized bed and in a riser using silica sand (260 μm) as the bed material to determine the optimum operating conditions for stable heat supply between the two reactors for the biomass gasifer operation. Solid circulation rate was measured as a function of gas velocity and solid inventory and the obtained data was correlated in terms of Froude number and a ratio of aeration and particle terminal velocities. Flow regimes and the axial solid holdup distribution in the riser were determined as a function of gas velocity and solid circulation rate.

Original languageEnglish
Pages (from-to)686-690
Number of pages5
JournalJournal of Chemical Engineering of Japan
Issue number7
StatePublished - 2008


  • Bubbling fluidized bed
  • Riser
  • Solid circulating rate
  • Solid phase holdup


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