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Understanding the torrefaction of woody and agricultural biomasses through their extracted macromolecular components. Part 2: Torrefaction model

Abstract : A new torrefaction model was proposed for predicting solid mass loss in torrefaction as a function of biomass main macromolecular composition and type, as well as on the operating conditions. To do this, solid degradation kinetics were modelled following a 2-successive reaction scheme for each macro-compound and the additive modelling approach through biomass macromolecular component behavior in torrefaction proposed by Nocquet et al. (2014). The use of extracted fractions from different woody and agricultural biomass species (ash-wood, beech, miscanthus, pine and wheat straw) instead of commercial compounds increased the accuracy of the prediction of solid kinetics in biomass torrefaction. The validation of the proposed model with 9 raw biomasses in torrefaction showed an accurate prediction for woods, while the prediction for agricultural biomasses was acceptable.
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Submitted on : Wednesday, September 2, 2020 - 9:28:40 AM
Last modification on : Thursday, September 3, 2020 - 5:01:15 AM

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María González Martínez, Capucine Dupont, Andrés Anca-Couce, Denilson da Silva Perez, Guillaume Boissonnet, et al.. Understanding the torrefaction of woody and agricultural biomasses through their extracted macromolecular components. Part 2: Torrefaction model. Energy, Elsevier, 2020, 210, pp.118451. ⟨10.1016/j.energy.2020.118451⟩. ⟨hal-02918985⟩

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