Effective Lignin Utilization Strategy: Major Depolymerization Technologies, Purification Process and Production of Valuable Material

Roy, Pallabi Sinha; Garnier, Gil; Allais, Florent; Saito, Kei

doi:10.1246/cl.200873

Cited by 7 publications

(3 citation statements)

References 104 publications

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“…The structure of lignin oen varies depending on the plant species and its environment. 20 Lignin is a complex three-dimensional phenolic polymer formed by phenyl propane units linked by C-C or C-O-C bonds, which contains a variety of reactive functional groups, such as carbonyl, carboxyl and hydroxyl groups so that lignin has phenolic properties. By density ooding theory (DFT) analysis, the magnitude of the bond dissociation energy in lignin is ranked as 21 During lignin treatment, the bonds in which the chemical bonds require the least energy to break are the a-O-4 and b-O-4 bonds, respectively, which break easily and produce hydroxyl groups.…”

Section: Preparation Of Lcasmentioning

confidence: 99%

Review on the preparation and application of lignin-based carbon aerogels

Yang

et al. 2022

RSC Adv.

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Section: Preparation Of Lcasmentioning

confidence: 99%

Review on the preparation and application of lignin-based carbon aerogels

Yang

et al. 2022

RSC Adv.

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“…The "lignin-first" biorefining concept, termed reductive catalytic fractionation (RCF) or catalytic upstream biorefining (CUB), [189,190] represents a forward-looking methodology initiating with lignocellulose. This strategy affords the notable benefit of accomplishing a comprehensive separation of carbohydrate and lignin fractions under a reductive environment.…”

Section: Lignocellulose As Substratementioning

confidence: 99%

Hydrogen‐transfer strategy in lignin refinery: Towards sustainable and versatile value‐added biochemicals

Li,

Liu,

Tang

et al. 2024

ChemSusChem

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Lignin, the most prevalent natural source of polyphenols on Earth, offers substantial possibilities for the conversion into aromatic compounds, which is critical for attaining sustainability and carbon neutrality. The hydrogen‐transfer method has garnered significant interest owing to its environmental compatibility and economic viability. The efficacy of this approach is contingent upon the careful selection of catalytic and hydrogen‐donating systems that decisively affect the yield and selectivity of the monomeric products resulting from lignin degradation. This paper highlights the hydrogen‐transfer technique in lignin refinery, with a specific focus on the influence of hydrogen donors on the depolymerization pathways of lignin. It delineates the correlation between the structure and activity of catalytic hydrogen‐transfer arrangements and the gamut of lignin‐derived biochemicals, utilizing data from lignin model compounds, separated lignin, and lignocellulosic biomass. Additionally, the paper delves into the advantages and future directions of employing the hydrogen‐transfer approach for lignin conversion. In essence, this concept investigation illuminates the efficacy of the hydrogen‐transfer paradigm in lignin valorization, offering key insights and strategic directives to maximize lignin's value sustainably.

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“…Here, multi-functional cinnamate-like monomers with unsaturated double bonds were synthesized using vanillin, a product of oxidative degradation of lignin, which is also commercially available; 3,4-dihydroxybenzaldehyde, can be obtained via oxidative degradation followed by a demethylation process; and glycerol, a byproduct of the biodiesel production process. [33][34][35][36][37] The critical properties, such as the extent of crosslinking, decrosslinking, glass transition temperatures and their effect on adhesive lap shear strength, were analyzed for six different structures with tri-, tetra-, and hexa-functional core and catechol, methoxy, propyl, and pentyl side chain attachments. We hypothesized that, due to the inherent photoreversible properties and the high tunability of the structures, we could potentially make the functional polymers work as reusable adhesives.…”

Section: Introductionmentioning

confidence: 99%