STUDY ON HYDROGENOLYSIS OF ORGANIC ACID SOLUBLE LIGNIN INTO MONOPHENOL COMPOUND

Yu Wenbing; Shen Dekui

doi:10.19912/j.0254-0096.tynxb.2021-1391

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 225-230. DOI: 10.19912/j.0254-0096.tynxb.2021-1391

STUDY ON HYDROGENOLYSIS OF ORGANIC ACID SOLUBLE LIGNIN INTO MONOPHENOL COMPOUND

Yu Wenbing, Shen Dekui

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Abstract

Different biomass feedstocks of woody （hardwood and softwood） and gramineous species were first used to prepare organic acid soluble lignin. It is found that the contents of carbon and hydrogen element and high heating value of woody lignin are higher than those of gramineous lignins, and the contents of β-O-4, β-β and β-5 bond of softwood lignin are higher than those of hardwood and graminous lignin. Then, the hydrogenolysis reactions of different lignins in ethanol/isopropanol show that the monophenol yield of woody lignin are higher than those of gramineous lignin, and the highest monophenol yield of Chinese fir lignin is about 8.07%. In addition, the monophenols from woody lignin are predominantly no side-chain or ternary carbon side chain compounds, whereas grass lignin are depolymerized into predominantly binary carbon side chain compounds.

Key words

lignin / biomass / hydrogenolysis / monophenol compound / bio-oil

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Yu Wenbing, Shen Dekui. STUDY ON HYDROGENOLYSIS OF ORGANIC ACID SOLUBLE LIGNIN INTO MONOPHENOL COMPOUND[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 225-230 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1391

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