期刊
CATALYSIS SCIENCE & TECHNOLOGY
卷 4, 期 8, 页码 2312-2317出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cy00175c
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资金
- Japan Science and Technology Agency (JST) ALCA
- Japan Society for the Promotion of Science (JSPS) (KAKENHI) [23760734]
The synthesis of glucose from cellulose is a critical roadblock for establishing a new sustainable cycle of biorefinery to produce bio-based and environmentally-benign chemicals. We have previously demonstrated that the pre-treatment ball-milling of solid cellulose and a solid catalyst ( mix-milling) drastically improves the yield of glucose and oligosaccharides; however, the effect of this type of ball-milling has not been quantitatively evaluated. In this study, we performed several model reactions and found that the mix-milling method drastically enhanced the solid-solid reactions, such as the hydrolysis of insoluble cellulose to soluble oligomers on the solid catalyst, but not liquid-solid reactions. The kinetic study indicated that the rate constant of hydrolysis of cellulose to oligomers using mix-milling was 13-fold higher than that using individual milling. Owing to the fast depolymerisation of cellulose, we achieved a 72% yield of glucose with 97% conversion of cellulose and 74% selectivity at 418 K.
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