Quantitative evaluation of ball-milling effects on the hydrolysis of cellulose catalysed by activated carbon

Mizuho Yabushita, Hirokazu Kobayashi, Kenji Hara, Atsushi Fukuoka

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2312-2317
Number of pages6
JournalCatalysis Science and Technology
Volume4
Issue number8
DOIs
Publication statusPublished - 2014 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis

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