Hierarchical Porous Activated Carbon-Supported Ruthenium Catalysts for Catalytic Cleavage of Lignin Model Compounds

The catalytic conversion of lignin model compounds was performed using Ru/C catalysts and an autoclave reactor. were prepared by the impregnation method highly porous homemade activated carbon characterized XRD, SEM, specific surface area. reactions in a high pressure/temperature reactor at different temperatures with solvents. results showed that novel from supports KOH agent higher activity than commercial catalyst. Ethanol 2-propanol suitable solvents for cleavage β–O–4 ether bond 2-phenoxy-1-phenyl ethanol (~65–70% conversion) over Ru/C-KOH-2 catalyst 220 °C comparison to tert-butanol 1-propanol (~43–47% ethanol). Also, increase reaction temperature 200 240 enhanced phenol selectivity 9.4% 19.5% improved 46.6% 98.5% solvent. outstanding (98.5%) 2-phenoxy-1-phenylethanol °C, 1h, This hierarchical carbon-supported ruthenium (Ru/C-KOH-2) can be applied further compound.