화학공학소재연구정보센터
Applied Catalysis B: Environmental, Vol.154, 294-300, 2014
Highly selective rearrangement of furfuryl alcohol to cyclopentanone
The aqueous phase hydrogenation of furfuryl alcohol to cyclopentanone was carried out on a series of metal supported and bulk catalysts. The effect of catalyst concentration, temperature, hydrogen pressure and reaction time has also been investigated. By changing the partial hydrogen pressure and concentration of metal catalyst it is possible to transform furfuryl alcohol with a very high selectivity either to furfuryl alcohol or cyclopentanone. High hydrogen pressure and catalyst concentration favours the formation of tetrahydrofurfuryl alcohol. At very low concentration of metal catalyst (0.25-1.0 wt%) and 0.8-2.5 MPa of hydrogen pressure, the product is exclusively cyclopentanone formed in yields higher than 95 mol%. Very active and selective are nickel type catalysts. The differences in selectivities of products distribution are explained by the proposed reaction mechanism consisting of two parallel reactions. One reaction is catalyzed preferably by hydrogen ions produced by self-dissociation of water and other by metal catalyst. (C) 2014 Elsevier B.V. All rights reserved.