Abstract
The vapor-phase catalytic reaction of crotyl alcohol (CRO) was investigated over metal oxide-modified silica catalysts. The isomerization of CRO to 3-buten-2-ol (3B2OL) was found to progress in the reaction of CRO over V2O5-modified SiO2 (V2O5/SiO2) at 200 °C. V2O5/SiO2 showed high 3B2OL yield and stable catalytic activity. The isomerization between CRO and 3B2OL reached an equilibrium without the dehydration to 1,3-butadiene. Poisoning experiments using dimethylpyridines suggested that Lewis acid sites acted as the active centers.
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