Reactions of phenol, water, acetic acid, methanol, and 2-hydroxymethylfuran with olefins as models for bio-oil upgrading / Xulai Yang 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. 2003–2013 Titre : Reactions of phenol, water, acetic acid, methanol, and 2-hydroxymethylfuran with olefins as models for bio-oil upgrading Type de document : texte imprimé Auteurs : Xulai Yang, Auteur ; Sabornie Chatterjee, Auteur ; Zhijun Zhang, Auteur Année de publication : 2010 Article en page(s) : pp. 2003–2013 Note générale : Industrial et Chemistry Langues : Anglais (eng) Mots-clés : Phenol  Acetic acid  Hydroxymethylfuran  Olefins  Bio-oil  Octene  Alkylation Résumé : Model liquid phase reactions of 1-octene with phenol in the presence of water, acetic acid, methanol, and 2-hydroxymethylfuran, respectively, were carried out over acid catalysts for bio-oil upgrading, including 30 wt % acidic salt Cs2.5H0.5PW12O40 supported on K-10 clay (30%Cs2.5/K-10), Nafion (NR50) and Amberlyst 15. Temperatures from 40 to 120 °C were examined. Both catalysts had a high activity and selectivity for O-alkylation of phenol with 1-octene but not with 2,4,4-trimethylpentene. The presence of water, acetic acid, and methanol lowered the yield of alkylated phenols by the competitive formation of octanols and dioctyl ethers, octyl acetates, and methyl ethers, respectively. Higher O-alkylation selectivity was obtained at the expense of lower phenol conversion in the presence of water, methanol, or acetic acid. 30%Cs2.5/K-10 is an excellent water-tolerant catalyst while Amberlyst 15 decomposed at higher temperatures and higher water concentrations. 2-Hydroxymethylfuran deactivated catalysts significantly, indicating furan derivatives in bio-oil may require modification before upgrading with olefins. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900998d [article] Reactions of phenol, water, acetic acid, methanol, and 2-hydroxymethylfuran with olefins as models for bio-oil upgrading [texte imprimé] / Xulai Yang, Auteur ; Sabornie Chatterjee, Auteur ; Zhijun Zhang, Auteur . - 2010 . - pp. 2003–2013. Industrial et Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2003–2013 Mots-clés : Phenol  Acetic acid  Hydroxymethylfuran  Olefins  Bio-oil  Octene  Alkylation Résumé : Model liquid phase reactions of 1-octene with phenol in the presence of water, acetic acid, methanol, and 2-hydroxymethylfuran, respectively, were carried out over acid catalysts for bio-oil upgrading, including 30 wt % acidic salt Cs2.5H0.5PW12O40 supported on K-10 clay (30%Cs2.5/K-10), Nafion (NR50) and Amberlyst 15. Temperatures from 40 to 120 °C were examined. Both catalysts had a high activity and selectivity for O-alkylation of phenol with 1-octene but not with 2,4,4-trimethylpentene. The presence of water, acetic acid, and methanol lowered the yield of alkylated phenols by the competitive formation of octanols and dioctyl ethers, octyl acetates, and methyl ethers, respectively. Higher O-alkylation selectivity was obtained at the expense of lower phenol conversion in the presence of water, methanol, or acetic acid. 30%Cs2.5/K-10 is an excellent water-tolerant catalyst while Amberlyst 15 decomposed at higher temperatures and higher water concentrations. 2-Hydroxymethylfuran deactivated catalysts significantly, indicating furan derivatives in bio-oil may require modification before upgrading with olefins. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900998d

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire