Low temperature lignin depolymerization to aromatic compounds with a redox couple catalyst

Zhe Zhang; Parikshit Gogoi; Zhishuai Geng; Xinliang Liu; Xu Du

doi:10.1016/j.fuel.2020.118799

Low temperature lignin depolymerization to aromatic compounds with a redox couple catalyst

Zhe Zhang, Parikshit Gogoi^*, Zhishuai Geng, Xinliang Liu, Xu Du

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

Development of selective lignin depolymerization method to valuable chemicals enhances the sustainability of downstream processing of biomass in a bio-refinery. The depolymerization of lignin is challenging due to its complicated structural pattern and changes during the process. Herein, we reported a low-temperature (~100 °C) oxidative depolymerization method for kraft lignin to aromatics by using a FeCl₃/NaNO₃/O₂ redox couple catalyst under mild conditions. The redox catalyst depolymerized the lignin with a limited quantity of catalyst. Experimental study reveals the formation of vanillic acid and vanillin as the major products during the process. This study explains a suitable method for valorization of lignin and as a whole effective method for depolymerization of lignin to aromatic which partially fulfill the future need of the Industry.

Original language	English
Article number	118799
Journal	Fuel
Volume	281
DOIs	https://doi.org/10.1016/j.fuel.2020.118799
Publication status	Published - 1 Dec 2020
Externally published	Yes

Keywords

Kraft lignin
Low temperature
Oxidative depolymerization
Redox couple

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10.1016/j.fuel.2020.118799

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title = "Low temperature lignin depolymerization to aromatic compounds with a redox couple catalyst",

abstract = "Development of selective lignin depolymerization method to valuable chemicals enhances the sustainability of downstream processing of biomass in a bio-refinery. The depolymerization of lignin is challenging due to its complicated structural pattern and changes during the process. Herein, we reported a low-temperature (~100 °C) oxidative depolymerization method for kraft lignin to aromatics by using a FeCl3/NaNO3/O2 redox couple catalyst under mild conditions. The redox catalyst depolymerized the lignin with a limited quantity of catalyst. Experimental study reveals the formation of vanillic acid and vanillin as the major products during the process. This study explains a suitable method for valorization of lignin and as a whole effective method for depolymerization of lignin to aromatic which partially fulfill the future need of the Industry.",

keywords = "Kraft lignin, Low temperature, Oxidative depolymerization, Redox couple",

author = "Zhe Zhang and Parikshit Gogoi and Zhishuai Geng and Xinliang Liu and Xu Du",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = dec,

day = "1",

doi = "10.1016/j.fuel.2020.118799",

language = "English",

volume = "281",

journal = "Fuel",

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TY - JOUR

T1 - Low temperature lignin depolymerization to aromatic compounds with a redox couple catalyst

AU - Zhang, Zhe

AU - Gogoi, Parikshit

AU - Geng, Zhishuai

AU - Liu, Xinliang

AU - Du, Xu

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Development of selective lignin depolymerization method to valuable chemicals enhances the sustainability of downstream processing of biomass in a bio-refinery. The depolymerization of lignin is challenging due to its complicated structural pattern and changes during the process. Herein, we reported a low-temperature (~100 °C) oxidative depolymerization method for kraft lignin to aromatics by using a FeCl3/NaNO3/O2 redox couple catalyst under mild conditions. The redox catalyst depolymerized the lignin with a limited quantity of catalyst. Experimental study reveals the formation of vanillic acid and vanillin as the major products during the process. This study explains a suitable method for valorization of lignin and as a whole effective method for depolymerization of lignin to aromatic which partially fulfill the future need of the Industry.

AB - Development of selective lignin depolymerization method to valuable chemicals enhances the sustainability of downstream processing of biomass in a bio-refinery. The depolymerization of lignin is challenging due to its complicated structural pattern and changes during the process. Herein, we reported a low-temperature (~100 °C) oxidative depolymerization method for kraft lignin to aromatics by using a FeCl3/NaNO3/O2 redox couple catalyst under mild conditions. The redox catalyst depolymerized the lignin with a limited quantity of catalyst. Experimental study reveals the formation of vanillic acid and vanillin as the major products during the process. This study explains a suitable method for valorization of lignin and as a whole effective method for depolymerization of lignin to aromatic which partially fulfill the future need of the Industry.

KW - Kraft lignin

KW - Low temperature

KW - Oxidative depolymerization

KW - Redox couple

UR - http://www.scopus.com/inward/record.url?scp=85088813499&partnerID=8YFLogxK

U2 - 10.1016/j.fuel.2020.118799

DO - 10.1016/j.fuel.2020.118799

M3 - Article

AN - SCOPUS:85088813499

SN - 0016-2361

VL - 281

JO - Fuel

JF - Fuel

M1 - 118799

ER -

Low temperature lignin depolymerization to aromatic compounds with a redox couple catalyst

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Keywords

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