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Kinetics of xylose dehydration into furfural in formic acid / Kaisa Lamminpaa in Industrial & engineering chemistry research, Vol. 51 N° 18 (Mai 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 18 (Mai 2012) . - pp. 6297-6303 Titre : Kinetics of xylose dehydration into furfural in formic acid Type de document : texte imprimé Auteurs : Kaisa Lamminpaa, Auteur ; Juha Ahola, Auteur ; Juha Tanskanen, Auteur Année de publication : 2012 Article en page(s) : pp. 6297-6303 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Dehydration  Kinetics Résumé : In this study, kinetics of formic add-catalyzed xylose dehydration into furfural and furfural decomposition was investigated using batch experiments within a temperature range of 130-200 °C. Initial xylose and furfural concentrations up to 0.2 and 0.08 mol/L, respectively, were used. The room temperature pH of the formic add catalyst solution was between 0.9 and 1.7. The kinetic model used was based on a specific acid catalysis model and included the prevailing hydrogen ion concentration in reaction conditions. The study showed that the modeling must account for other reactions for xylose besides dehydration into furfural. Moreover, the reactions between xylose intermediate and furfural play only a minor role. The study also showed that kinetic modeling of xylose and furfural decomposition reactions must take the uncatalyzed reaction in water solvent into account. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25867280 [article] Kinetics of xylose dehydration into furfural in formic acid [texte imprimé] / Kaisa Lamminpaa, Auteur ; Juha Ahola, Auteur ; Juha Tanskanen, Auteur . - 2012 . - pp. 6297-6303. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 18 (Mai 2012) . - pp. 6297-6303 Mots-clés : Dehydration  Kinetics Résumé : In this study, kinetics of formic add-catalyzed xylose dehydration into furfural and furfural decomposition was investigated using batch experiments within a temperature range of 130-200 °C. Initial xylose and furfural concentrations up to 0.2 and 0.08 mol/L, respectively, were used. The room temperature pH of the formic add catalyst solution was between 0.9 and 1.7. The kinetic model used was based on a specific acid catalysis model and included the prevailing hydrogen ion concentration in reaction conditions. The study showed that the modeling must account for other reactions for xylose besides dehydration into furfural. Moreover, the reactions between xylose intermediate and furfural play only a minor role. The study also showed that kinetic modeling of xylose and furfural decomposition reactions must take the uncatalyzed reaction in water solvent into account. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25867280