Catalytic depolymerization of alkaline lignin to value-added phenolic-based compounds over Ni/CeO2-ZrO2 catalyst synthesized with a one-step chemical reduction of Ni species using NaBH4 as the reducing agent was written by Totong, Sansanee;Daorattanachai, Pornlada;Laosiripojana, Navadol;Idem, Raphael. And the article was included in Fuel Processing Technology in 2020.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:
Alk. lignin obtained from paper manufacturing is a potential feedstock for upgrading to produce value-added chems. This study demonstrates the efficiencies of synthesized Ni supported CeO2-ZrO2 catalysts to convert this low-cost alk. lignin into value-added phenolic-based chems. for further com. applications. Lignin depolymerization was performed under mild reaction conditions, namely, reaction temperature of 200-300°C, and reaction time of 1-5 h. Three different catalyst preparation methods (simple wet-impregnation, wet-impregnation assisted reduction in H2 atmosphere and one-step chem. reduction) were investigated and used to evaluate possible correlations between the active Ni phase and catalytic performance in lignin depolymerization The active Ni phase was successfully formed by one-step chem. reduction method which showed a significant improvement on product yield, especially lignin oil. The best result obtained in lignin depolymerization was by using 10%Ni/CeO2-ZrO2-red catalyst which resulted in producing a high yield of lignin oil (46.8%) from lignin feedstock under mild condition of 250°C. The major phenolic compounds in lignin oil were: guaiacol, methyl-guaiacol, ethyl-guaiacol, vanillin, acetovanillone, and homovanillic acid. Furthermore, the reaction temperature affected the product yield and product distribution resulting in higher diversity of phenolic compounds in lignin oil. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).
4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Recommanded Product: 2380-78-1
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem