Modeling of biomass devolatilization in a fluidized bed reactor

Renzo Di Felice, Gianfilippo Coppola, Sergio Rapagna, Nader Jand

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

A simple model that simulates a single biomass particle devolatilization is described. The model takes into account the main physical and chemical factors influencing the phenomenon at high temperatures (>700 K), where the production of gaseous components far outweighs that of liquids. The predictions of the model are shown to be in good agreement with published data. The model is then applied to the devolatilization of biomass in a fluidized bed, in which attention is focused on heat transfer, particle mixing and elutriation, and gas production. Predictions on the overall devolatilization time for a biomass particle are compared with experimental results obtained in a fluidized bed reactor in which the process was monitored by continuous measurement of the bed pressure. Good correspondence of predicted with calculated values was obtained, supporting the validity of the many approximations made in the derivation of the governing relationships for the pyrolysis process.

Original languageEnglish
Pages (from-to)325-332
Number of pages8
JournalCanadian Journal of Chemical Engineering
Volume77
Issue number2
DOIs
Publication statusPublished - Jan 1 1999

Keywords

  • Biomass devolatilization
  • Biomass elutriation
  • Fluidized bed reactor
  • Gas production rate
  • Mixing and segregation in fluidized bed

ASJC Scopus subject areas

  • Chemical Engineering(all)

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