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Energetic characterization and radiographic analysis of torrefied coated MDF residues
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Orientador(es)
Resumo(s)
The use of wood panel residues as biomass for energy production is feasible. Heat treatments can
improve energy properties while minimizing the emission of toxic gases due to thermoset polymers
used in Medium Density Fiberboard (MDF) panels. Torrefaction or pre-carbonization, a heat treatment
between 200 and 300 °C with low oxygen availability accumulates carbon and lignin, decreases
hygroscopicity, and increases energy efficiency. The objective of this work was to evaluate the energy
parameters (immediate, structural, and elementary chemical composition, moisture content, and
yield) and density in torrefied MDF panels. The torrefaction improved the energetic features of coated
MDF, decreasing the moisture content, volatile matter, and consequently, concentrating the carbon
with better results in the samples torrefied for 40 min. The densitometric profiles of the torrefied
MDF, obtained by X-ray densitometry, showed a decrease in the apparent density as torrefaction time
increased. The digital X-ray images in gray and rainbow scale enabled the most detailed study of the
density variation of MDF residues
Descrição
Palavras-chave
MDF residues biomass energy production
Contexto Educativo
Citação
Scientific Reports (2021) 11:4899
Editora
Nature