Conversion of Glucose and Xylose to 5-Hydroxymethyl furfural, Furfural, and Levulinic Acid Using Ethanol Organosolv Pretreatment under Various Conditions

Q2 Engineering

Journal of the Korean wood science and technology Pub Date : 2022-11-01 DOI:10.5658/wood.2022.50.6.475

K. Gwak, Chae-Hwi Yoon, Jong-Chan Kim, Jong-Hwa Kim, Young-Min Cho, I. Choi

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引用次数: 0

Abstract

The objective of this study was to understand the conversion characteristics of glucose and xylose using the major monosaccharide standards for lignocellulosic biomass. The acid-catalyzed organosolv pretreatment conducted using ethanol was significantly different from the acid-catalyzed process conducted in an aqueous medium. 5-hydroxymethylfurfural (5-HMF), levulinic acid and furfural were produced from glucose conversion. The maximum yield of 5-HMF was 5.5%, at 200℃, when 0.5% sulfuric acid was used. The maximum yield of levulinic acid was 21.5%, at 220℃, when 1.0% sulfuric acid was used. Furfural was produced from xylose conversion and under 0.5% sulfuric acid, furfural reached the maximum yield 48.5% at 210℃. Ethyl levulinate and methyl levulinate were also formed from the glucose standard following the esterification reaction conducted under conditions of the combined conversion method, which proceeded under both ethanol-rich and water-rich conditions.

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不同条件下乙醇-有机溶剂预处理葡萄糖和木糖制备5-羟甲基糠醛、糠醛和乙酰丙酸

本研究的目的是使用木质纤维素生物质的主要单糖标准来了解葡萄糖和木糖的转化特性。使用乙醇进行的酸催化有机溶剂预处理与在水性介质中进行的酸催化剂工艺显著不同。葡萄糖转化生成5-羟甲基糠醛（5-HMF）、乙酰丙酸和糠醛。当硫酸用量为0.5%时，在200℃时，5-HMF的最大产率为5.5%。在220℃，使用1.0%硫酸时，乙酰丙酸的最大产率为21.5%。木糖转化制备糠醛，在0.5%硫酸作用下，糠醛在210℃时的最高产率为48.5%。在富乙醇和富水条件下进行的组合转化法条件下进行酯化反应后，乙酰丙酸乙酯和乙酰丙酸甲酯也由葡萄糖标准物形成。

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来源期刊

Journal of the Korean wood science and technology Materials Science-Materials Science (miscellaneous)

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally. The abbreviated and official title of the journal is ''J. Korean Wood Sci. Technol.''. All submitted manuscripts written in Korean or English are peer-reviewed by more than two reviewers. The title, abstract, acknowledgement, references, and captions of figures and tables should be provided in English for all submitted manuscripts.