HYDROGENATION OF PINE WOOD IN SUPERCRITICAL ETHANOL WITH IR AND Pd-Ir CATALYSTS

Iridium and palladium-iridium catalysts on carbon nanotubes were obtained by the hydrothermal method. The effect of the resulting catalysts on the yield and composition of pine wood hydrogenation products obtained in supercritical ethanol was studied. The influence of iridium and iridium-palladium catalysts in the process of hydrogenation of pine wood has been established. The use of iridium-palladium catalysts in the process of hydrogenation of pine wood leads to an increase in its conversion by 8 wt.%, the yield of liquid products by 11 wt.%, while reducing the yield of solid products by 8 wt.% and gaseous products by 3 wt.%. In the presence of catalysts during the hydrogenation of pine wood, the yield of monomeric methoxyphenols increases to 22.0 wt.%.