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Updated: Sep 12, 2025

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
Published on: January 7, 2019
Production of benzoic acid from wood lignin
Zhaolin Dou1, Ni Han1, Liantong Guo1
1School of Chemistry, Dalian University of Technology, Dalian 116081, China. jimin@dlut.edu.cn.
Abstract:
Lignin is the most abundant renewable aromatic resource in nature. Herein, we report a new biorefinery for the production of benzoic acid from lignin through a two-step strategy. First reductive-catalytic-fractionation-obtained lignin monomers were hydro-deoxygenated to alkylbenzenes over a porous CoMoS (CoMoS-P) catalyst, whose porous structure significantly improved the hydrodeoxygenation reactivity. Then, alkylbenzenes were oxidized to benzoic acid over NHPI/Mn(OAc)2 with O2 as the oxidant. Using this biorefinery, 54 mg of benzoic acid can be obtained from 1 g of pine wood lignin.
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