Development of a Kinetic Model for Biomass Gasification in Dual Fluidized Bed Gasifier

  • Zhu Lin
    Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan Province 610500, P.R. China
  • Fan Junming
    Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan Province 610500, P.R. China

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Biomass gasification is a promising technology for the utilization of biomass. In this study, a mathematical model for biomass gasification in dual fluidized bed (DFB) has been developed. The fluidized bed with biomass gasification was simulated as a bubbling fluidized bed, which was further divided into a bubble phase and an emulsion phase for modeling. The modeling results were compared with the experimental data to be in high agreement. The influences of steam to biomass mass ratio (S/B) and gasification temperature on the performances of the product gas concentration, the CO/H2 and CO2/CO molar proportions were focused on.

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