TY - JOUR
T1 - Production of phenolic hydrocarbons using catalytic depolymerization of empty fruit bunch (EFB)-derived organosolv lignin on Hβ-supported Ru
AU - Kim, Minsun
AU - Son, Deokwon
AU - Choi, Jae Wook
AU - Jae, Jungho
AU - Suh, Dong Jin
AU - Ha, Jeong Myeong
AU - Lee, Kwan Young
N1 - Funding Information:
This work was supported by the National Research Council of Science & Technology (NST) grant by the Korea government ( MSIP ) (No. CAP-11-04-KIST ). This work was also supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20143010091790 ).
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Catalytic depolymerization of empty fruit bunch (EFB)-derived organosolv lignin, which is free of ash and catalyst-poisoning sulfur, is performed using supported metal catalysts. Without the improved reaction activity in the presence of supercritical solvents, water and ethanol in this study, at the subcritical conditions, Hβ-supported Ru catalyst achieved 16.5% yield of small molecule phenolic hydrocarbons, including guaiacol, 4-methylguaiacol, 4-ethylguaiacol, cerulignol, and iso-eugenol, and produced degraded lignin polymer with 63% decreased weight-average molecular weight based on polystyrene-calibrated gel permeation chromatography results. The catalytic depolymerization activity was determined by the quantity of acid sites on the catalysts; however, the presence of metal nanoparticles is required to supply hydrogen atoms to the reaction system, which particles improve the catalytic depolymerization activity. The structure of organosolv lignin prepared by extraction using a mixture of ethanol and water was also studied using GPC and NMR results, which indicated that a possibly linear polymer composed of phenolic monomers with two or fewer linking functionalities.
AB - Catalytic depolymerization of empty fruit bunch (EFB)-derived organosolv lignin, which is free of ash and catalyst-poisoning sulfur, is performed using supported metal catalysts. Without the improved reaction activity in the presence of supercritical solvents, water and ethanol in this study, at the subcritical conditions, Hβ-supported Ru catalyst achieved 16.5% yield of small molecule phenolic hydrocarbons, including guaiacol, 4-methylguaiacol, 4-ethylguaiacol, cerulignol, and iso-eugenol, and produced degraded lignin polymer with 63% decreased weight-average molecular weight based on polystyrene-calibrated gel permeation chromatography results. The catalytic depolymerization activity was determined by the quantity of acid sites on the catalysts; however, the presence of metal nanoparticles is required to supply hydrogen atoms to the reaction system, which particles improve the catalytic depolymerization activity. The structure of organosolv lignin prepared by extraction using a mixture of ethanol and water was also studied using GPC and NMR results, which indicated that a possibly linear polymer composed of phenolic monomers with two or fewer linking functionalities.
KW - Catalyst
KW - Depolymerization
KW - Organosolv lignin
KW - Ru/Hβ
KW - Solid acid
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U2 - 10.1016/j.cej.2016.10.011
DO - 10.1016/j.cej.2016.10.011
M3 - Article
AN - SCOPUS:84991585646
VL - 309
SP - 187
EP - 196
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -