Use of near infrared spectroscopy to distinguish carbonization processes and charcoal sources

Monteiro Thiago Campos, Da Silva Vieira Renato, Lima Jose Tarcisio, Hein Gherardi Paulo Ricardo, Napoli Alfredo. 2010. Use of near infrared spectroscopy to distinguish carbonization processes and charcoal sources. Revista Cerne, 16 (3) : 381-390.

Titre portugais : Uso da espectroscopia no infravermelho próximo para diferenciar processos de carbonização e fontes de carvão vegetal

Quartile : Q4, Sujet : FORESTRY

Résumé : The near infrared spectroscopy (NIRS) has shown a rapid and accurate technique for evaluation of materials of biological origin. The objective of this study was to evaluate the ability of the near infrared (NIR) spectroscopy associated to the Principal Component Analysis (PCA) for the separation of carbonization processes and identification of the origin of the woods used in the carbonizations. Hence, the charcoal of seven species of Eucalyptus and twenty native species from the Cerrado (savannah) of Minas Gerais, Brazil were investigated. The Eucalyptus wood was carbonized in a laboratory furnace and in a 190 m3 industrial rectangular kilns while the wood of native vegetation was carbonized only under laboratory conditions. The samples were grinded for NIR spectra acquirement. The NIR spectra were analyzed by PCA but no cluster were identified allowing discrimination between charcoal produced from native and from Eucalyptus wood. However, the cluster formed in the PCA when using the first derivative NIR spectra permitted to distinguish charcoal produced in different processes of carbonization. Two groups of data for charcoal produced in the industrial rectangular kilns were also observed, suggesting heterogeneity in the carbonization process. Key words: Charcoal origin, NIRS, principal component analysis. (résumé d'auteur)

Mots-clés Agrovoc : Eucalyptus, charbon de bois, carbonisation du bois, spectroscopie infrarouge

Mots-clés géographiques Agrovoc : Minas Gerais

Classification Agris : K50 - Technologie des produits forestiers
P06 - Sources d'énergie renouvelable
U30 - Méthodes de recherche

Champ stratégique Cirad : Axe 2 (2005-2013) - Biomasse énergie et sociétés du sud

Auteurs et affiliations

• Monteiro Thiago Campos, UFLA (BRA)
• Da Silva Vieira Renato, UFT (BRA)
• Lima Jose Tarcisio, UFLA (BRA)
• Hein Gherardi Paulo Ricardo
• Napoli Alfredo, CIRAD-PERSYST-UPR Bois tropicaux (BRA) ORCID: 0000-0002-1559-3975

Source : Cirad - Agritrop (https://agritrop.cirad.fr/557452/)

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