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

• Yabushita, Mizuho

• Kobayashi, Hirokazu

• Hara, Kenji

• Fukuoka, Atsushi

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.

Journal

• Catalysis science & technology

  Catalysis science & technology 4 (8), 2312-2317, 2014-03-13

  Royal Society of Chemistry

Keywords

• Catalysis

Details

• CRID: 1050282813993616512
• NII Article ID: 120005567725
• DOI: 10.1039/c4cy00175c
• ISSN: 20444761
• ISSN: 20444753
• HANDLE: 2115/58050
• Web Site: http://pubs.rsc.org/en/content/articlepdf/2014/CY/C4CY00175C
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN