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On the Oxidative Valorization of Lignin to High-Value Chemicals : A Critical Review of Opportunities and Challenges

Abdelaziz, Omar Y. LU ; Clemmensen, Ida ; Meier, Sebastian ; Costa, Carina A.E. ; Rodrigues, Alírio E. ; Hulteberg, Christian P. LU orcid and Riisager, Anders (2022) In ChemSusChem 15(20).
Abstract

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... (More)

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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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
analytical methods, biomass, heterogeneous catalysis, lignin valorization, oxidative depolymerization
in
ChemSusChem
volume
15
issue
20
article number
e202201232
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:36004569
  • scopus:85138248087
ISSN
1864-5631
DOI
10.1002/cssc.202201232
language
English
LU publication?
yes
id
c17a01f8-41a7-4c4a-84a4-abdcc4f7991d
date added to LUP
2022-12-05 11:31:41
date last changed
2024-03-21 15:19:19
@article{c17a01f8-41a7-4c4a-84a4-abdcc4f7991d,
  abstract     = {{<p>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.</p>}},
  author       = {{Abdelaziz, Omar Y. and Clemmensen, Ida and Meier, Sebastian and Costa, Carina A.E. and Rodrigues, Alírio E. and Hulteberg, Christian P. and Riisager, Anders}},
  issn         = {{1864-5631}},
  keywords     = {{analytical methods; biomass; heterogeneous catalysis; lignin valorization; oxidative depolymerization}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{20}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{ChemSusChem}},
  title        = {{On the Oxidative Valorization of Lignin to High-Value Chemicals : A Critical Review of Opportunities and Challenges}},
  url          = {{http://dx.doi.org/10.1002/cssc.202201232}},
  doi          = {{10.1002/cssc.202201232}},
  volume       = {{15}},
  year         = {{2022}},
}