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Effects of feed composition and space velocity on direct synthesis of dimethyl ether from syngas / Gholamreza Moradi in Industrial & engineering chemistry research, Vol. 47 N°20 (Octobre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°20 (Octobre 2008) . - P. 7672-7679 Titre : Effects of feed composition and space velocity on direct synthesis of dimethyl ether from syngas Type de document : texte imprimé Auteurs : Gholamreza Moradi, Editeur scientifique ; Javad Ahmadpour, Editeur scientifique ; Mahdi Nazari, Editeur scientifique Année de publication : 2008 Article en page(s) : P. 7672-7679 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Feed  composition  Space  velocity  Bifunctional  catalyst  (CuO/ZnO/Al2O3+  H-ZSM-5) Résumé : Full factorial experimental design method was applied for investigation of the effects of different space velocity (SV) (500−1500 mLn/(g-cat.h)) and H2/CO molar feed ratio (1−2) on CO conversion and/or DME selectivity as the response variables over a physically prepared bifunctional catalyst (CuO/ZnO/Al2O3+ H-ZSM-5) for liquid phase direct DME synthesis from synthesis gas. The results showed that feed composition is the more effective factor on the response and the interaction of the SV and H2/CO only slightly influenced the response. The factor levels that can maximize the SDME are SV of 1500 mLn/(g-cat.h) and H2/CO of 1.5 at 240 °C and 35 bar. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800888z [article] Effects of feed composition and space velocity on direct synthesis of dimethyl ether from syngas [texte imprimé] / Gholamreza Moradi, Editeur scientifique ; Javad Ahmadpour, Editeur scientifique ; Mahdi Nazari, Editeur scientifique . - 2008 . - P. 7672-7679. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°20 (Octobre 2008) . - P. 7672-7679 Mots-clés : Feed  composition  Space  velocity  Bifunctional  catalyst  (CuO/ZnO/Al2O3+  H-ZSM-5) Résumé : Full factorial experimental design method was applied for investigation of the effects of different space velocity (SV) (500−1500 mLn/(g-cat.h)) and H2/CO molar feed ratio (1−2) on CO conversion and/or DME selectivity as the response variables over a physically prepared bifunctional catalyst (CuO/ZnO/Al2O3+ H-ZSM-5) for liquid phase direct DME synthesis from synthesis gas. The results showed that feed composition is the more effective factor on the response and the interaction of the SV and H2/CO only slightly influenced the response. The factor levels that can maximize the SDME are SV of 1500 mLn/(g-cat.h) and H2/CO of 1.5 at 240 °C and 35 bar. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800888z