Application of acid catalytic hydrothermal reaction to conversion of carbohydrate biomass into valuable substances

Y. Takeuchi, Fangming Jin, H. Enomoto, Kazuyuki Tohji

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Hydrothermal degradation of glucose in the presence of HCl, H 2SO4 and H3PO4 were carried out with pH varying from 1.5-2.5, reaction time varying from 1 min to 10 min at 523 K, to investigate the effect of different acid catalysts and acid concentration on the production of 5-hydroxymethyl-2-furaldehyde (HMF) and levulinic acid from glucose. At lower acid concentration, the yield of HMF was considerably high. The increase in acid concentration accelerated the conversion of HMF to levulinic acid. Among three acid catalysts, HCl is most effect for both conversion of glucose to HMF and further conversion of HMF into levulinic acid. But the decomposition of HMF is also fastest in the case of HCl catalysis. In the conditions used in this study, the highest yield of levulinic acid is about 55 %, which occurred at pH 1.5 for 5 min with HCl, and total highest yield of HMF and levulinic acid is about 50 %, which occurred at pH 2.0 for 5 min with H3PO4.

本文言語English
ホスト出版物のタイトルWATER DYANMICS
ホスト出版物のサブタイトル4th International Workshop on Water Dynamics
ページ190-192
ページ数3
DOI
出版ステータスPublished - 2007 5月 11
イベント4th International Workshop on Water Dynamics - Sendai, Japan
継続期間: 2006 11月 72006 11月 8

出版物シリーズ

名前AIP Conference Proceedings
898
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other4th International Workshop on Water Dynamics
国/地域Japan
CitySendai
Period06/11/706/11/8

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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