Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts

Susan Olivia Limarta; Jeong Myeong Ha; Young Kwon Park; Hyunjoo Lee; Dong Jin Suh; Jungho Jae

doi:10.1016/j.jiec.2017.08.006

Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts

Susan Olivia Limarta, Jeong Myeong Ha, Young Kwon Park, Hyunjoo Lee, Dong Jin Suh, Jungho Jae

School of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

84 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	45-54
Number of pages	10
Journal	Journal of Industrial and Engineering Chemistry
Volume	57
DOIs	https://doi.org/10.1016/j.jiec.2017.08.006
State	Published - 25 Jan 2018

Keywords

Catalytic depolymerization
Lignin
MgO
Phenolic monomers
Ru/C

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10.1016/j.jiec.2017.08.006

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title = "Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts",

abstract = "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.",

keywords = "Catalytic depolymerization, Lignin, MgO, Phenolic monomers, Ru/C",

author = "Limarta, {Susan Olivia} and Ha, {Jeong Myeong} and Park, {Young Kwon} and Hyunjoo Lee and Suh, {Dong Jin} and Jungho Jae",

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doi = "10.1016/j.jiec.2017.08.006",

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T1 - Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts

AU - Limarta, Susan Olivia

AU - Ha, Jeong Myeong

AU - Park, Young Kwon

AU - Lee, Hyunjoo

AU - Suh, Dong Jin

AU - Jae, Jungho

PY - 2018/1/25

Y1 - 2018/1/25

N2 - 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.

AB - 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.

KW - Catalytic depolymerization

KW - Lignin

KW - MgO

KW - Phenolic monomers

KW - Ru/C

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DO - 10.1016/j.jiec.2017.08.006

M3 - Article

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SN - 1226-086X

VL - 57

SP - 45

EP - 54

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Efficient depolymerization of lignin in supercritical ethanol by a combination of metal and base catalysts

Abstract

Keywords

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