The synthesis of isobutyl alcohol ((BuOH)-Bu-i) from methanol (MeOH) and n-propanol (PrOH) through the Guerbet condensation has been studied in batch experiments using bifunctional heterogeneous systems based on a dehydrogenating/hydrogenating metal (Pd, Rh, Ni or Cu) and a basic Mg-Al mixed oxide derived from hydrotalcite-type (HT) precursors. Only copper-based systems showed appreciable performances. In particular, the Cu/Mg/Al mixed oxides catalysts obtained by the co-precipitation method offered the best results in terms of activity and selectivity, thus allowing to reduce pollution problems connected with the up to now adopted copper chromite. These co-precipitated systems were also tested in some preliminary experiments carried out in gas-solid phase in a flow reactor, thus confirming promising application perspectives. (c) 2005 Elsevier B.V. All rights reserved.
|Autori interni:||CARLINI, CARLO|
RASPOLLI GALLETTI, ANNA MARIA
|Autori:||Carlini C; Marchionna M; Noviello M; Raspolli Galletti A; Sbrana G; Basile F; Vaccari A|
|Titolo:||Guerbet condensation of methanol with n-propanol to isobutyl alcohol over heterogeneous bifunctional catalysts based on Mg-Al mixed oxides partially substituted by different metal components|
|Anno del prodotto:||2005|
|Digital Object Identifier (DOI):||10.1016/j.molcata.2004.12.037|
|Appare nelle tipologie:||1.1 Articolo in rivista|