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Enhanced olefin production from renewable aliphatic feedstocks and co-fed lignin derivatives using experimental surrogates by millisecond catalytic partial oxidation / Dreyer, Bradon J. in Industrial & engineering chemistry research, Vol. 49 N° 4 (Fevrier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 4 (Fevrier 2010) . - pp 1611–1624 Titre : Enhanced olefin production from renewable aliphatic feedstocks and co-fed lignin derivatives using experimental surrogates by millisecond catalytic partial oxidation Type de document : texte imprimé Auteurs : Dreyer, Bradon J., Auteur ; Dauenhauer, Paul J., Auteur ; Horn, Raimund, Auteur Année de publication : 2010 Article en page(s) : pp 1611–1624 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Olefin  Lignin  derivatives  Catalytic  Oxidation. Résumé : To investigate the effect of co-fed lignin derivatives on olefin production in the catalytic partial oxidation of aliphatic feedstocks, benzene was selected as a lignin surrogate and n-hexane was selected as a renewable oil surrogate. Aromatic benzene and aliphatic n-hexane, along with the corresponding 80:20 and 50:50 molar n-hexane/benzene mixtures, were partially oxidized in millisecond contact time reactors, varying the fuel to oxygen ratio (0.8 < C/O < 2.0), the catalyst (5 wt % Pt or Rh), the support (45 or 80 pores per linear inch α-Al2O3) while maintaining constant space time (GHSV=105 h−1). The experiments indicate that the addition of benzene likely results in competitive catalytic adsorption which reduces the catalytic oxidation of n-hexane and increases production of olefins by homogeneous cracking. Under optimal conditions, selectivity to ethylene and propylene from n-hexane was increased from 35% using pure n-hexane to 65% when using a 50:50 molar mixture of benzene and n-hexane. Results indicate that the addition of lignin-derived aromatic species should increase production of olefins from catalytically reformed renewable oils. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9013452 [article] Enhanced olefin production from renewable aliphatic feedstocks and co-fed lignin derivatives using experimental surrogates by millisecond catalytic partial oxidation [texte imprimé] / Dreyer, Bradon J., Auteur ; Dauenhauer, Paul J., Auteur ; Horn, Raimund, Auteur . - 2010 . - pp 1611–1624. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 4 (Fevrier 2010) . - pp 1611–1624 Mots-clés : Olefin  Lignin  derivatives  Catalytic  Oxidation. Résumé : To investigate the effect of co-fed lignin derivatives on olefin production in the catalytic partial oxidation of aliphatic feedstocks, benzene was selected as a lignin surrogate and n-hexane was selected as a renewable oil surrogate. Aromatic benzene and aliphatic n-hexane, along with the corresponding 80:20 and 50:50 molar n-hexane/benzene mixtures, were partially oxidized in millisecond contact time reactors, varying the fuel to oxygen ratio (0.8 < C/O < 2.0), the catalyst (5 wt % Pt or Rh), the support (45 or 80 pores per linear inch α-Al2O3) while maintaining constant space time (GHSV=105 h−1). The experiments indicate that the addition of benzene likely results in competitive catalytic adsorption which reduces the catalytic oxidation of n-hexane and increases production of olefins by homogeneous cracking. Under optimal conditions, selectivity to ethylene and propylene from n-hexane was increased from 35% using pure n-hexane to 65% when using a 50:50 molar mixture of benzene and n-hexane. Results indicate that the addition of lignin-derived aromatic species should increase production of olefins from catalytically reformed renewable oils. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9013452