Communication Dans Un Congrès Année : 2024

Adapting chemical reaction kinetics of biomass fast pyrolysis to fluidized-bed reactor model

Résumé

Fast pyrolysis has been the subject of intense fundamental research over the last 30 years. However, the bioenergy industry is still limited and needs design improvement. Improving the process requires considering biomass's thermal and chemical decomposition at the molecular scale, thermal and mass transfer at the particle scale, and fluidized bed hydrodynamics at the reactor scale. This work presents a numerical lumped model describing the fast pyrolysis of biomass. Chemical kinetics are predicted via a semi-global reaction model [1]. The stoichiometric approach ensures mass conservation. Non-isothermal and heterogeneous reactions are assumed, and the biomass sample temperature is considered. Numerical results are compared with experimental data obtained from a micro-pyrolyser coupled with a mass spectrometer [2]. Numerical results highlighted the key role played by the thermal model. The project is still an ongoing work. The long-term goal is the direct coupling of global chemical kinetics and reactor model via a stoichiometric approach to incorporate realistic molecular details. The coupling strategy will be presented.
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Dates et versions

hal-04740138 , version 1 (21-10-2024)

Identifiants

  • HAL Id : hal-04740138 , version 1

Citer

Zoé Mercier, Marion Carrier. Adapting chemical reaction kinetics of biomass fast pyrolysis to fluidized-bed reactor model. JTMS 2024 : Journées "Théorie, Modélisation et Simulation", Oct 2024, Toulouse, France. ⟨hal-04740138⟩
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