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Effects of feed composition and feed impurities in the catalytic conversion of syngas to higher alcohols over alkali-promoted cobalt-molybdenum sulfide / Jakob M. Christensen in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 7949-7963 Titre : Effects of feed composition and feed impurities in the catalytic conversion of syngas to higher alcohols over alkali-promoted cobalt-molybdenum sulfide Type de document : texte imprimé Auteurs : Jakob M. Christensen, Auteur ; Peter A. Jensen, Auteur ; Anker D. Jensen, Auteur Année de publication : 2011 Article en page(s) : pp. 7949-7963 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Synthesis  gas  Catalytic  conversion  Impurity Résumé : Alkali-promoted cobalt-molybdenum sulfide is a potential catalyst for the conversion of syngas into higher alcohols. This work is an investigation of how the feed composition influences the behavior of the sulfide catalyst. In a sulfur-free syngas the production of higher alcohols is observed to be optimal with an equimolar mixture of CO and H2 in the feed, while the methanol production benefits from an increasing hydrogen content in the feed. The influence of NH3 and H2O in the syngas feed has also been investigated. Ammonia (741 ppmv) in the feed is observed to cause a general and largely reversible deactivation of the catalyst. Operation with elevated water levels in the syngas feed (4.7-13.4 mol %) is observed to cause a deactivation of the catalyst, and it is especially the chain growth that is affected. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332119 [article] Effects of feed composition and feed impurities in the catalytic conversion of syngas to higher alcohols over alkali-promoted cobalt-molybdenum sulfide [texte imprimé] / Jakob M. Christensen, Auteur ; Peter A. Jensen, Auteur ; Anker D. Jensen, Auteur . - 2011 . - pp. 7949-7963. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 7949-7963 Mots-clés : Synthesis  gas  Catalytic  conversion  Impurity Résumé : Alkali-promoted cobalt-molybdenum sulfide is a potential catalyst for the conversion of syngas into higher alcohols. This work is an investigation of how the feed composition influences the behavior of the sulfide catalyst. In a sulfur-free syngas the production of higher alcohols is observed to be optimal with an equimolar mixture of CO and H2 in the feed, while the methanol production benefits from an increasing hydrogen content in the feed. The influence of NH3 and H2O in the syngas feed has also been investigated. Ammonia (741 ppmv) in the feed is observed to cause a general and largely reversible deactivation of the catalyst. Operation with elevated water levels in the syngas feed (4.7-13.4 mol %) is observed to cause a deactivation of the catalyst, and it is especially the chain growth that is affected. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332119