Formation Mechanism of Carbonized Solid from Cellobiose under Hydrothermal Conditions

被引：0
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作者：
Inoue, Seiichi [1 ]
Kumagai, Satoshi [2 ]
Endo, Takashi [3 ]
机构：
[1] Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32, Kagamiyama, Higashi-Hiroshima, Hiroshima,739-0046, Japan
[2] Saga University, 1, Honjyo, Saga, Saga,840-8502, Japan
[3] Hiroshima University, 3-10-31, Kagamiyama, Higashi-Hiroshima, Hiroshima,739-0046, Japan
来源：
Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy | 2024年 / 103卷 / 11期
关键词：
This paper reports on the formation mechanism of carbonized solid from cellobiose; which is a decomposition product of cellulose; under hydrothermal conditions (temperature: 240 °C; holding time range: 0–240 min). With the increase in the temperature to 240 °C; most of the cellobiose was hydrolyzed to glucose; with no sign of a carbonized solid. The obtained glucose was converted to 5-(hydroxymethyl)-2-furaldehyde (5-HMF) in less than 15 min (holding time) at the designated temperature. A carbonized solid was obtained via 5-HMF among the existing compounds after an extended holding time of 30 min under the hydrothermal condition. On the other hand; for longer holding times (> 60 min) at the designated temperature; 5-HMF is known to mainly decompose into levulinic and formic acids. However; after obtaining these compounds; the carbonized solid yield did not increase. These results indicate that degradation products; such as glucose and levulinic acid; do not directly produce a carbonized solid but do so via 5-HMF. © 2024 Japan Institute of Energy. All rights reserved;
D O I：
10.3775/jie.103.90
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页码：90 / 94
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