Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol / Zhe Tang in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2040–2046 Titre : Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol Type de document : texte imprimé Auteurs : Zhe Tang, Auteur ; Ying Zhang, Auteur ; Qingxiang Guo, Auteur Année de publication : 2010 Article en page(s) : pp. 2040–2046 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Pyrolysis  Hydrocracking  Ethanol Résumé : Pyrolytic lignins (PLs) are the major components in fast pyrolysis bio-oils and have detrimental effects on bio-oil properties. The existence of PLs also makes bio-oil upgrading rather difficult due to their nonvolatility and thermal instability. In this study, PL produced from rice husk was hydrocracked at 260 °C in supercritical ethanol under a hydrogen atmosphere by the use of Ru/ZrO2/SBA-15 or Ru/SO42−/ZrO2/SBA-15 catalyst. Trace amount of tar or coke was produced after the hydrocracking process, and most of the PL was converted into liquid fuel consisting of stable organic compounds with a heating value as high as 34.94 MJ/kg. The liquid product distribution was investigated by gas chromatography/mass spectrometry (GC-MS). The results demonstrated that, under supercritical ethanol conditions, Ru/ZrO2/SBA-15 and Ru/SO42−/ZrO2/SBA-15 were effective catalysts to convert PL to stable organic compounds such as phenols, guaiacols, anisoles, esters, light ketones, alcohols, long-chain alkanes. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9015842 [article] Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol [texte imprimé] / Zhe Tang, Auteur ; Ying Zhang, Auteur ; Qingxiang Guo, Auteur . - 2010 . - pp. 2040–2046. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2040–2046 Mots-clés : Pyrolysis  Hydrocracking  Ethanol Résumé : Pyrolytic lignins (PLs) are the major components in fast pyrolysis bio-oils and have detrimental effects on bio-oil properties. The existence of PLs also makes bio-oil upgrading rather difficult due to their nonvolatility and thermal instability. In this study, PL produced from rice husk was hydrocracked at 260 °C in supercritical ethanol under a hydrogen atmosphere by the use of Ru/ZrO2/SBA-15 or Ru/SO42−/ZrO2/SBA-15 catalyst. Trace amount of tar or coke was produced after the hydrocracking process, and most of the PL was converted into liquid fuel consisting of stable organic compounds with a heating value as high as 34.94 MJ/kg. The liquid product distribution was investigated by gas chromatography/mass spectrometry (GC-MS). The results demonstrated that, under supercritical ethanol conditions, Ru/ZrO2/SBA-15 and Ru/SO42−/ZrO2/SBA-15 were effective catalysts to convert PL to stable organic compounds such as phenols, guaiacols, anisoles, esters, light ketones, alcohols, long-chain alkanes. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9015842

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