A novel interconnected fluidised bed for the combined flash pyrolysis of biomass and combustion of char

Arthur M.C. Janse*, P. Maarten Biesheuvel, Wolter Prins, Wim P.M. van Swaaij

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

A novel system of two adjacent fluidised beds operating in different gas atmospheres and exchanging solids was developed for the combined flash pyrolysis of biomass and combustion of the produced char. Fluidised sand particles (200 μm < dp < 400 μm) are transported from the pyrolysis reactor to the combustor through an orifice and recycled by a standpipe, riser and cyclone. Advantages of the new design are its compactness and the high level of heat integration. The solids circulation rate and holdup distribution between the two compartments could be controlled adequately in experiments at room temperature and atmospheric pressure. A model, developed to predict the solids and gas exchange between the two reactor compartments, was validated with experiments in which the three relevant gas flows, the orifice diameter and the particle diameter were varied.
Original languageEnglish
Pages (from-to)77-86
Number of pages10
JournalChemical Engineering Journal
Volume76
Issue number1
DOIs
Publication statusPublished - 2000

Keywords

  • Interconnected fluidised bed
  • Rotating cone reactor
  • Orifice
  • Standpipe
  • Biomass
  • Pyrolysis

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