“…Various lignin depolymerization technologies have been studied such as pyrolysis, , base or acid-catalyzed depolymerization, ,, hydrolysis, oxidation, , etc. Among these reactions, hydrogenolysis is a promising method to depolymerize lignin owing to its high conversion, selectivity, and low coke formation during the reactions. , Hydrogenolysis reaction enables the scissions of aryl ether bonds such as α-O-4 and β-O-4 existing in lignin by adding H 2 to the ether bonds, thus promoting the depolymerization of lignin.…”