期刊
CHEMSUSCHEM
卷 15, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202201232
关键词
analytical methods; biomass; heterogeneous catalysis; lignin valorization; oxidative depolymerization
资金
- Technical University of Denmark
- Swedish Foundation for Strategic Environmental Research MISTRA [F2019/1822]
- Swedish Energy Agency [P2021-00137]
- Research Council of Norway through the project L2BA - Lignin to BioAromatics [321427]
- Associate Laboratory LSRE-LCM [UIDB/50020/2020, UIDP/50020/2020]
- Associate Laboratory ALiCE - FCT/MCTES (PIDDAC) [LA/P/0045/2020]
- COST (European Cooperation in Science and Technology) [CA17128]
- Lund University
This review focuses on the conversion of technical lignins by oxidative depolymerization using heterogeneous catalysts. It summarizes the current literature on the use of various heterogeneous catalysts for oxidative depolymerization of lignin, including methods, reaction products and yields, as well as techniques for determining product yields and recovery. Challenges and suggestions for future research are also outlined.
The efficient valorization of lignin is crucial if we are to replace current petroleum-based feedstock and establish more sustainable and competitive lignocellulosic biorefineries. Pulp and paper mills and second-generation biorefineries produce large quantities of low-value technical lignin as a by-product, which is often combusted on-site for energy recovery. This Review focuses on the conversion of technical lignins by oxidative depolymerization employing heterogeneous catalysts. It scrutinizes the current literature describing the use of various heterogeneous catalysts in the oxidative depolymerization of lignin and includes a comparison of the methods, catalyst loadings, reaction media, and types of catalyst applied, as well as the reaction products and yields. Furthermore, current techniques for the determination of product yields and product recovery are discussed. Finally, challenges and suggestions for future approaches are outlined.
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