Delay of biomass pyrolysis by gas–particle interaction

E Russo, Johannes G.M. Kuerten, Bernardus J. Geurts

    Research output: Contribution to journalArticleAcademicpeer-review

    17 Citations (Scopus)

    Abstract

    We apply a biomass pyrolysis model, based on the model developed by Haseli et al. , which can be used in combination with Direct Numerical Simulation. The pyrolysis model is combined with a model for particle tracking to simulate 3D turbulent particle-laden channel flow with biomass particles undergoing pyrolysis in nitrogen. Transfer of momentum, heat and mass between gas and particles are fully taken into account. The effects of this transfer are analyzed and quantified in terms of the delay in the conversion or pyrolysis time. The delay is shown to depend on the initial volume fraction (number of particles) and on the size of the particles. The two-way coupling effects are relevant at volume fractions >10−5. For a fixed volume fraction, gas–particle interaction induces a delay in the devolatilization, decreasing with increasing particle size. Using this model, we also performed simulations of realistic biomass particle size distributions in order to compare two-way and one-way coupling.
    Original languageEnglish
    Pages (from-to)88-99
    Number of pages12
    JournalJournal of analytical and applied pyrolysis
    Volume110
    DOIs
    Publication statusPublished - Nov 2014

    Keywords

    • Biomass pyrolysis
    • DNS
    • Torrefied biomass
    • METIS-309848
    • Gas–particle interaction
    • EWI-25628
    • IR-93781

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