Nettet18. mar. 2024 · In addition, the optimal Ni–Fe ratio of Ni–Fe/CeO 2-Al 2 O 3 catalysts for promoting lignin depolymerization was investigated in a reaction system with formic acid as the internal hydrogen donor and isopropanol as the solvent, and the residual lignin and product bio-oil obtained after depolymerization experiments were analyzed by Fourier … Nettet26. aug. 2024 · Wang Q, Guan S, Shen D (2024) Experimental and kinetic study on lignin depolymerization in water/formic acid system. Int J Mol Sci 18(10):2082–2092. Article Google Scholar Liu X, Li S, Liu Y, Cao Y (2015) Formic acid: a versatile renewable reagent for green and sustainable chemical synthesis. Chin J Catal 36(9):1461–1475
Frontiers Synergistic Improvement of Carbohydrate and Lignin ...
Nettet1. sep. 2024 · Lignin is a heterogeneous polymer composed of the three basic units of guaiacyl (G), syringyl (S), and p-hydroxyphenyl (H), and it is the most abundant renewable aromatic compound on earth. These units are formed by the precursor of three monomers: conifery, sinapyl, and p-coumaryl alcohols [ 2 ]. Nettet30. sep. 2015 · A DFT study has been performed to gain insight into the formic-acid-catalyzed depolymerization of the oxidized lignin model (1ox) to monoaromatics, developed by Stahl et al. (Nature 2014, 515, 249–252). The conversion proceeds sequentially via formylation, elimination, and hydrolysis. Intriguingly, the elimination … gamtoos river mouth resort
Lignin up for break-down Nature Chemistry
Nettet2. des. 2024 · An effective approach to fractionate lignocellulose into 93.9% of noncondensed lignin, 99.4% of cellulose, 17.8% of xylose, and 66.7% of xylooligosaccharides under mild conditions was developed using the formic acid solution at 80 °C for 100 min. Nettet18. sep. 2024 · In 2024, Halleraker and Barth published a quantitative NMR study of aqueous phase products from the hydrothermal conversion of lignin. Acetic acid, acetone, methanol, formic acid, dimethyl ether ... Nettet1. okt. 2024 · The formic acid is believed to improve the lignin solubility, enhance depolymerisation and act as in situ source of hydrogen . At the reaction temperature … black is a classic color