[article] in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9023-9031 | Titre : | Characterization of hydrochars produced by hydrothermal carbonization of lignin, cellulose, d - xylose, and wood meal | | Type de document : | texte imprimé | | Auteurs : | Shimin Kang, Auteur ; Xianglan Li, Auteur ; Juan Fan, Auteur | | Année de publication : | 2012 | | Article en page(s) : | pp. 9023-9031 | | Note générale : | Industrial chemistry | | Langues : | Anglais (eng) | | Mots-clés : | Wood Carbonization | | Résumé : | Hydrothermal carbonization of cellulose, lignin, D-xylose (substitute for hemicellulose), and wood meal (WM) was experimentally conducted between 225 and 265 °C, and the chemical and structural properties of the hydrochars were investigated. The hydrochar yield is between 45 and 60%, and the yield trend of the feedstock is lignin > WM > cellulose > D-xylose. The hydrochars seem stable below 300 °C, and aromatic structure is formed in all of these hydrochars. The C content, C recovery, energy recovery, ratio of C/O, and ratio of C/H in all of these hydrochars are among 63―75%, 80―87%, 78―89%, 2.3― 4.1, and 12―15, respectively. The higher heating value (HHV) of the hydrochars is among 24-30 MJ/kg, with an increase of 45―91% compared with the corresponding feedstock. The carbonization mechanism is proposed, and furfural is found to be an important intermediate product during D-xylose hydrochar production, while lignin hydrothermal carbonization products are made of polyaromatic hydrochar and phenolic hydrochar. The formation of microspheres on the surface of cellulose and WM hydrochars is discussed, and transformation of the hemicellulose should be the reaction for WM microsphere production. | | ISSN : | 0888-5885 | | En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26107460 |
[article] Characterization of hydrochars produced by hydrothermal carbonization of lignin, cellulose, d - xylose, and wood meal [texte imprimé] / Shimin Kang, Auteur ; Xianglan Li, Auteur ; Juan Fan, Auteur . - 2012 . - pp. 9023-9031. Industrial chemistry Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9023-9031 | Mots-clés : | Wood Carbonization | | Résumé : | Hydrothermal carbonization of cellulose, lignin, D-xylose (substitute for hemicellulose), and wood meal (WM) was experimentally conducted between 225 and 265 °C, and the chemical and structural properties of the hydrochars were investigated. The hydrochar yield is between 45 and 60%, and the yield trend of the feedstock is lignin > WM > cellulose > D-xylose. The hydrochars seem stable below 300 °C, and aromatic structure is formed in all of these hydrochars. The C content, C recovery, energy recovery, ratio of C/O, and ratio of C/H in all of these hydrochars are among 63―75%, 80―87%, 78―89%, 2.3― 4.1, and 12―15, respectively. The higher heating value (HHV) of the hydrochars is among 24-30 MJ/kg, with an increase of 45―91% compared with the corresponding feedstock. The carbonization mechanism is proposed, and furfural is found to be an important intermediate product during D-xylose hydrochar production, while lignin hydrothermal carbonization products are made of polyaromatic hydrochar and phenolic hydrochar. The formation of microspheres on the surface of cellulose and WM hydrochars is discussed, and transformation of the hemicellulose should be the reaction for WM microsphere production. | | ISSN : | 0888-5885 | | En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26107460 |
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Affiner la rechercheCharacterization of hydrochars produced by hydrothermal carbonization of lignin, cellulose, d - xylose, and wood meal / Shimin Kang in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012)
