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Autothermal partial oxidation of glycerol to syngas over Pt-, LaMnO3-, and Pt/LaMnO3-coated monoliths / Shih-Kang Liu in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16278-16287 Titre : Autothermal partial oxidation of glycerol to syngas over Pt-, LaMnO3-, and Pt/LaMnO3-coated monoliths Type de document : texte imprimé Auteurs : Shih-Kang Liu, Auteur ; Yu-Chuan Lin, Auteur Année de publication : 2013 Article en page(s) : pp. 16278-16287 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Monolithic  construction  Synthesis  gas  Partial  oxidation Résumé : Glycerol and glycerol/water solution were converted to syngas over Pt-, LaMnO3-, and Pt/LaMnO3-coated monoliths under autothermal partial oxidation. XRD and SEM were used to characterize the phase compositions and surface morphologies of freshly prepared and postreaction catalysts. A continuous fixed-bed design, without an upstream vaporizer or external heat supply, was operated at millisecond contact times. Among the catalysts used in this study, Pt was the least reactive, and its activity was found to be reduced by sintering. Pt also tended to produce nonequilibrium products such as ethylene and acetaldehyde in fuel-rich environments. In contrast, LaMnO3 was found to favor glycerol combustion, producing fewer minor products and generating sufficient heat to sustain autothermal operations in fuel- and steam-rich regimes. Pt supported on LaMnO3 showed a synergistic effect of Pt sintering suppression and a broad H2/CO distribution in the resulting syngas. This effect can be correlated to the interaction between Pt and LaMnO3. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732154 [article] Autothermal partial oxidation of glycerol to syngas over Pt-, LaMnO3-, and Pt/LaMnO3-coated monoliths [texte imprimé] / Shih-Kang Liu, Auteur ; Yu-Chuan Lin, Auteur . - 2013 . - pp. 16278-16287. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16278-16287 Mots-clés : Monolithic  construction  Synthesis  gas  Partial  oxidation Résumé : Glycerol and glycerol/water solution were converted to syngas over Pt-, LaMnO3-, and Pt/LaMnO3-coated monoliths under autothermal partial oxidation. XRD and SEM were used to characterize the phase compositions and surface morphologies of freshly prepared and postreaction catalysts. A continuous fixed-bed design, without an upstream vaporizer or external heat supply, was operated at millisecond contact times. Among the catalysts used in this study, Pt was the least reactive, and its activity was found to be reduced by sintering. Pt also tended to produce nonequilibrium products such as ethylene and acetaldehyde in fuel-rich environments. In contrast, LaMnO3 was found to favor glycerol combustion, producing fewer minor products and generating sufficient heat to sustain autothermal operations in fuel- and steam-rich regimes. Pt supported on LaMnO3 showed a synergistic effect of Pt sintering suppression and a broad H2/CO distribution in the resulting syngas. This effect can be correlated to the interaction between Pt and LaMnO3. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732154