A rigorous model for the simulation of chemical reaction in gas-particle bubbling fluidized bed: I. Modeling and validation

Wenbin Li, Yawen Zhang, Yuanyuan Shao, Jesse Zhu

Research output: Journal PublicationArticlepeer-review

6 Citations (Scopus)

Abstract

A rigorous model is presented for simulating the gas-particle two phase flow and the involved chemical reaction in bubbling fluidized beds (BFB). The present model employs the recently developed c2¯−εc closures for the turbulent mass transfer equation, thus enables the prediction of species concentration distributions without relying on empirical turbulent Schmidt number. The Two-Fluid model (TMF) is used to represent the fluid mechanics and the coupled chemical reaction. In mathematical expressions, the kg − εg − kp − εp − Θ equations for the description of phases turbulence is adopted. To test the validity of the present model, simulations are conducted for reactive multiphase flow in a BFB. The model predictions show good agreement with the experimental data in literatures. Part II of these serial works will further extend the application of this model to simulating a gas combustion process with strong heat effect in BFB.

Original languageEnglish
Pages (from-to)399-407
Number of pages9
JournalPowder Technology
Volume327
DOIs
Publication statusPublished - Mar 2018
Externally publishedYes

Keywords

  • Bubbling fluidized bed (BFB)
  • Chemical reaction
  • Computational mass transfer
  • Simulation
  • Turbulent mass diffusivity

ASJC Scopus subject areas

  • Chemical Engineering (all)

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