| Titre : | Influence of structure type of Al2O3 on dehydration of methanol for dimethyl ether synthesis (2008) |
| Auteurs : | Chang Won Seo, Auteur ; Kwang Deok Jung, Auteur ; Kwan Young Lee, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N°17, Septembre 2008) |
| Article en page(s) : | p. 6573–6578 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Methanol Alumina properties (Y-Al2O3 and n-Al2O3) catalysts |
| Résumé : | This study focused on the effect of alumina properties on the catalytic performance in the dehydration of methanol to synthesize dimethyl ether. The catalysts (Y-Al2O3 and n-Al2O3) were prepared from boehmite and bayerite, respectively, via calcination at various temperatures. With heat treatment, the properties of alumina have been changed significantly. Under identical reaction conditions, Y-Al2O3 calcined at 500 °C and n-Al2O3 calcined at 600 °C showed the highest catalytic activity, because of high acid site density among the same types of alumina. Interestingly, n-Al2O3 showed higher catalytic activity than Y-Al2O3, although both catalysts possess comparable acidic properties. This means the structure type of alumina is crucial to determine catalytic performance in this reaction. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800106e |
