Hydrogen-Transfer Reductive Catalytic Fractionation of Lignocellulose: High Monomeric Yield with Switchable Selectivity

Release time:2023-06-09 Hits:

Impact Factor:16.1

DOI number:10.1002/anie.202307116

Affiliation of Author(s):东北林业大学

Journal:Angewandte Chemie International Edition

Abstract:Lignin solubilization and in situ hydrogenolysis are crucial for reductive catalytic fractionation (RCF) of lignocellulose to aromatic monomers. In this study, we reported a typical hydrogen bond acceptor of choline chloride (ChCl) to tailor the hydrogen-donating environment of the Ru/C-catalyzed hydrogen-transfer RCF of lignocellulose. The ChCl-tailored hydrogen-transfer RCF of lignocellulose was conducted under mild temperature and low-pressure (<1 bar) conditions, which was applicable to other lignocellulosic biomass sources. We obtained an approximate theoretical yield of propylphenol monomer of 59.2 wt % and selectivity of 97.3 % using an optimal content of ChCl (10 wt %) in ethylene glycol at 190 °C for 8 h. When the content of ChCl in ethylene glycol was increased to 110 wt %, the selectivity of propylphenol switched toward propylenephenol (yield of 36.2 wt % and selectivity of 87.6 %). The findings in this work provide valuable information for transforming lignin from lignocellulose into value-added products.

Co-author:Yanyan Yu,Yuhan Lou,Suqing Zeng,Yaxu Sun

First Author:Yilin Li

Indexed by:Journal paper

Correspondence Author:Yongzhuang Liu,Haipeng Yu

Document Type:J

Volume:62

Issue:32

Page Number:e202307116

Translation or Not:no

Date of Publication:2023-01-01

Included Journals:SCI

Links to published journals:https://onlinelibrary-wiley-com-443.webvpn.nefu.edu.cn/doi/10.1002/anie.202307116