Effects of the carbon support nature and ruthenium content on the performances of Ru/C catalysts in the liquid-phase hydrogenation of benzaldehyde to benzyl alcohol

摘要

The hydrogenation of benzaldehyde in ethanol medium in the presence of Ru/C catalysts was shown to proceed with the preferential formation of benzyl alcohol without subsequent hydrodeoxygenation into toluene. An increase in ruthenium content of the catalysts from 0.3 to 1.5 % enhanced the catalytic activity at a high selectivity for benzyl alcohol. The effect of physicochemical characteristics of the support on the formation and catalytic properties of metallic sites in the Ru/C samples was revealed. Most active in the formation of benzyl alcohol were the catalysts containing carbon nanotubes.