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Characteristics of solid residues obtained from hot-compressed-water treatment of woody biomass / Nobusuke Kobayashi in Industrial & engineering chemistry research, Vol. 48 N°1 (Janvier 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 373-379 Titre : Characteristics of solid residues obtained from hot-compressed-water treatment of woody biomass Type de document : texte imprimé Auteurs : Nobusuke Kobayashi, Editeur scientifique ; Nobuhiko Okada, Editeur scientifique ; Ayumu Hirakawa, Editeur scientifique Année de publication : 2009 Article en page(s) : P. 373-379 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Hot-Compressed-Water  Treatment  Solid  Residues  Woody  biomass Résumé : Hydrolysis experiment of woody biomass in hot compressed water (HCW) was conducted in a batch-type reactor and the characteristics of solid residue after the HCW hydrolysis treatment were measured to understand the hydrolysis mechanism of woody biomass. Woody slurry of Douglas fir was used in this HCW experiment. Reaction temperature was controlled from 423 to 523 K, and the reaction time was set at 1 min. After separation of solid residues from the hydrolysis liquid material, the solid residue characteristics, such as proximate and ultimate analysis, particle size distribution, particle shape, surface area, pore size distribution, chemical composition, and equilibrium moisture content ratio, were measured and then the decomposition mechanism of woody biomass in HCW was discussed. It was found that the solid residue characteristics yielded in HCW changed drastically depending on the reaction temperature. For example, cellulose crystallinity decreased with increasing reaction temperature, and the physical characteristics of solid residue, such as particle shape, particle diameter, and pore size distribution, also changed dramatically depending on the reaction temperature. The physical or chemical characteristic change in HCW was strongly related to the decomposition of components of woody biomass at that reaction temperature. Dehydration of woody components was one of the most important factors to understand physical characteristics during HCW treatment. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800870k [article] Characteristics of solid residues obtained from hot-compressed-water treatment of woody biomass [texte imprimé] / Nobusuke Kobayashi, Editeur scientifique ; Nobuhiko Okada, Editeur scientifique ; Ayumu Hirakawa, Editeur scientifique . - 2009 . - P. 373-379. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 373-379 Mots-clés : Hot-Compressed-Water  Treatment  Solid  Residues  Woody  biomass Résumé : Hydrolysis experiment of woody biomass in hot compressed water (HCW) was conducted in a batch-type reactor and the characteristics of solid residue after the HCW hydrolysis treatment were measured to understand the hydrolysis mechanism of woody biomass. Woody slurry of Douglas fir was used in this HCW experiment. Reaction temperature was controlled from 423 to 523 K, and the reaction time was set at 1 min. After separation of solid residues from the hydrolysis liquid material, the solid residue characteristics, such as proximate and ultimate analysis, particle size distribution, particle shape, surface area, pore size distribution, chemical composition, and equilibrium moisture content ratio, were measured and then the decomposition mechanism of woody biomass in HCW was discussed. It was found that the solid residue characteristics yielded in HCW changed drastically depending on the reaction temperature. For example, cellulose crystallinity decreased with increasing reaction temperature, and the physical characteristics of solid residue, such as particle shape, particle diameter, and pore size distribution, also changed dramatically depending on the reaction temperature. The physical or chemical characteristic change in HCW was strongly related to the decomposition of components of woody biomass at that reaction temperature. Dehydration of woody components was one of the most important factors to understand physical characteristics during HCW treatment. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800870k