Limarta, Susan Olivia Ha, Jeong-Myeong Park, Young-Kwon Lee, Hyunjoo Suh, Dong Jin jae, Jungho 2024-01-19T23:34:21Z 2024-01-19T23:34:21Z 2021-09-03 2018-01 1226-086X https://pubs.kist.re.kr/handle/201004/121873 This study investigates the use of combination of metal and solid-base catalysts for effective depolymerization of lignin into monophenol-rich bio-oil in supercritical ethanol through a synergy of base-catalyzed solvolysis and metal-catalyzed hydrogenolysis. The results showed that a combined catalyst of Ru/C and MgO/ZrO2 resulted in a significant decrease in the molecular weight of bio-oil, an increase in the yield of phenolic monomers, and the improved deoxygenation degree of bio-oil compared to the single catalyst condition. The synergic role of metal and base catalysts during lignin depolymerization was examined through comprehensive analysis of reaction products. (c) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved. English 한국공업화학회 Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts Article 10.1016/j.jiec.2017.08.006 1 Journal of Industrial and Engineering Chemistry, v.57, pp.45 - 54 Journal of Industrial and Engineering Chemistry 57 45 54 N scie scopus kci ART002311160 000422811600006 2-s2.0-85028074014 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article ACID-HYDROLYSIS LIGNIN PHENOLIC-COMPOUNDS KRAFT LIGNIN HYDROGENOLYSIS PROCESS MODEL-COMPOUND ALKALI LIGNIN HIGH-YIELD BIO-OIL CONVERSION PYROLYSIS Lignin Catalytic depolymerization Ru/C MgO Phenolic monomers