Delay of biomass pyrolysis by gas–particle interaction

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

Research output: Contribution to journalArticleAcademicpeer-review

16 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

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Biomass
Pyrolysis
Volume fraction
Direct numerical simulation
Channel flow
Particle size analysis
Momentum
Nitrogen
Gases
Particle size

Keywords

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

Cite this

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title = "Delay of biomass pyrolysis by gas–particle interaction",
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.",
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Delay of biomass pyrolysis by gas–particle interaction. / Russo, E; Kuerten, Johannes G.M.; Geurts, Bernardus J.

In: Journal of analytical and applied pyrolysis, Vol. 110, 11.2014, p. 88-99.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Delay of biomass pyrolysis by gas–particle interaction

AU - Russo, E

AU - Kuerten, Johannes G.M.

AU - Geurts, Bernardus J.

N1 - eemcs-eprint-25628

PY - 2014/11

Y1 - 2014/11

N2 - 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.

AB - 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.

KW - Biomass pyrolysis

KW - DNS

KW - Torrefied biomass

KW - METIS-309848

KW - Gas–particle interaction

KW - EWI-25628

KW - IR-93781

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EP - 99

JO - Journal of analytical and applied pyrolysis

JF - Journal of analytical and applied pyrolysis

SN - 0165-2370

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