Reductive Catalytic Depolymerization of Semi-industrial Wood-Based Lignin was written by Lu, Xiaojia;Lagerquist, Lucas;Eranen, Kari;Hemming, Jarl;Eklund, Patrik;Estel, Lionel;Leveneur, Sebastien;Grenman, Henrik. And the article was included in Industrial & Engineering Chemistry Research in 2021.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:
The current work studies the reductive catalytic depolymerization (RCD) of lignin from a novel semi-industrial process. The aim was to obtain aromatic mono-, di-, tri-, and tetramers for further valorization. The substrate and products were characterized by multiple anal. methods, including high pressure size-exclusion chromatog. (HPSEC), gas chromatog.-mass spectrometry, GC-flame ionization detector (FID), GC-FID/thermal conductivity detector (TCD), and NMR. The RCD was studied by exploring the influence of different parameters, such as lignin solubility, reaction time, hydrogen pressure, reaction temperature, pH, type and loading of the catalyst, as well as type and composition of the organic/aqueous solvent. The results show that an elevated temperature, a redox catalyst, and a hydrogen atm. are essential for the depolymerization and stability of the products, while the reaction medium also plays an important role. The highest obtained mono- to tetramers yield was 98% and mono- to dimers yield over 85% in the liquid phase products. The reaction mechanisms influenced the structure of the aliphatic chain in the monomers, but left the phenolic structure along with the methoxy groups largely unaltered. The current work contributes to the development and debottlenecking of the novel and sustainable overall process, which utilizes efficiently all the fractions of wood, in line with the principles of green engineering and chem. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).
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Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem