Massaranduba sawdust: A potential source of charcoal and activated carbon

Castro Jonnys P., Nobre João Rodrigo C., Napoli Alfredo, Bianchi Maria Lucia, Moulin Jordão C., Chiou Bor-Sen, Williams Tina G., Wood Delilah F., Avena-Bustillos Roberto J., Orts William J., Tonoli Gustavo H.D.. 2019. Massaranduba sawdust: A potential source of charcoal and activated carbon. Polymers, 11, n.spéc.Cellulose and Renewable Materials:1276, 14 p.

https://doi.org/10.3390/polym11081276

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Quartile : Q1, Sujet : POLYMER SCIENCE

Résumé : This paper provides proof of concept that activated carbon (AC) may be readily produced using limited conversion methods and resources from sawdust of massaranduba (Manilkara huberi) wood, thereby obtaining value-added products. Sawdust was sieved and heat-treated in an oxygen-free muffle furnace at 500 °C to produce charcoal. The charcoal was activated in a tubular electric furnace at 850 °C while being purged with CO2 gas. Microstructural, thermal and physical properties of the three components: sawdust, charcoal and AC were compared by means of field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), density and water adsorption/desorption measurements. The resulting AC had a large surface area as measured by Brunauer-Emmett-Teller (BET) comparable to other such values found in the literature. The large surface area was due to pore development at the microstructural level as shown by FESEM. XRD illustrated that sawdust had a semi-crystalline structure whereas charcoal and AC evidenced mostly amorphous structures. TGA and DSC showed that AC had high reactivity to moisture compared to sawdust and charcoal.

Mots-clés Agrovoc : charbon de bois, charbon actif, sciure, lignocellulose, utilisation des déchets, déchet de bois

Mots-clés géographiques Agrovoc : Amazonie

Mots-clés complémentaires : Manilkara huberi

Mots-clés libres : Amazonian woods, Lignocellulosic, Lignin, Pyrolysis, CO2, Surface area

Classification Agris : K50 - Technologie des produits forestiers
Q70 - Traitement des déchets agricoles

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

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