Chromatographic recovery of monosaccharides for the production of bioethanol from wood / Jari Heinonen in Industrial & engineering chemistry research, Vol. 49 N° 6 (Mars 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2907–2915 Titre : Chromatographic recovery of monosaccharides for the production of bioethanol from wood Type de document : texte imprimé Auteurs : Jari Heinonen, Auteur ; Tuomo Sainio, Auteur Année de publication : 2010 Article en page(s) : pp. 2907–2915 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Chromatographic--Recovery--Monosaccharides-- Bioethanol--Wood Résumé : Chromatographic recovery of monosaccharides from concentrated-acid hydrolysates of spruce and birch was investigated for the production of bioethanol from lignocellulose. The effects of resin cross-linkage, column loading, and hydrolysate composition on the yield of monosaccharides and the productivity of the process were of particular interest. Three strong acid cation-exchange resins (gel type) were used. Chromatographic separation experiments were done in a batch column. Monosaccharides were recovered as a “center cut” between sulfuric acid and acetic acid. Hydroxymethyl furfural and furfural, which inhibit the fermentation of monosaccharides, were completely separated from the other components. The highest H2SO4−monosaccharide separation efficiency was obtained with a 6 wt % cross-linked resin. The monosaccharide−acetic acid separation efficiency was found to improve with increasing resin cross-linkage. In the case of high amounts of acetic acid in the hydrolysate, a resin with a high cross-link density is needed for a good yield of monosaccharides. With hydrolysates containing small amounts of acetic acid, a 6 wt % cross-linked resin was found to give the highest yield. The productivity of the process was found to increase with the resin cross-linkage (up to 8 wt %). The optimum column loading depends on whether a high monosaccharide yield or high productivity is desired. The highest yield is obtained with a low loading. As to the productivity, the optimum loading was found to be approximately 10 vol % of the bed volume. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901598z [article] Chromatographic recovery of monosaccharides for the production of bioethanol from wood [texte imprimé] / Jari Heinonen, Auteur ; Tuomo Sainio, Auteur . - 2010 . - pp. 2907–2915. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2907–2915 Mots-clés : Chromatographic--Recovery--Monosaccharides-- Bioethanol--Wood Résumé : Chromatographic recovery of monosaccharides from concentrated-acid hydrolysates of spruce and birch was investigated for the production of bioethanol from lignocellulose. The effects of resin cross-linkage, column loading, and hydrolysate composition on the yield of monosaccharides and the productivity of the process were of particular interest. Three strong acid cation-exchange resins (gel type) were used. Chromatographic separation experiments were done in a batch column. Monosaccharides were recovered as a “center cut” between sulfuric acid and acetic acid. Hydroxymethyl furfural and furfural, which inhibit the fermentation of monosaccharides, were completely separated from the other components. The highest H2SO4−monosaccharide separation efficiency was obtained with a 6 wt % cross-linked resin. The monosaccharide−acetic acid separation efficiency was found to improve with increasing resin cross-linkage. In the case of high amounts of acetic acid in the hydrolysate, a resin with a high cross-link density is needed for a good yield of monosaccharides. With hydrolysates containing small amounts of acetic acid, a 6 wt % cross-linked resin was found to give the highest yield. The productivity of the process was found to increase with the resin cross-linkage (up to 8 wt %). The optimum column loading depends on whether a high monosaccharide yield or high productivity is desired. The highest yield is obtained with a low loading. As to the productivity, the optimum loading was found to be approximately 10 vol % of the bed volume. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901598z

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