Dehydration of d-glucose in high temperature water at pressures up to 80 MPa

Taku Aida, Yukiko Sato, Masaru Watanabe, Kiyohiko Tajima, Toshiyuki Nonaka, Hideo Hattori, Kunio Arai

Research output: Contribution to journalArticlepeer-review

223 Citations (Scopus)


Reaction of d-glucose in water to yield 5-hydroxymethylfurfural (5-HMF), 1,2,4-benzenetriol (BTO) and furfural was studied at high temperatures (up to 400 °C) and high pressures (up to 80 MPa) using a continuous flow reactor. Maximum temperature and pressure conditions gave maximum furfural yield. Increasing pressure from 40 to 70 and 80 MPa enhanced dehydration reactions to 5-HMF, but also enhanced hydrolysis of 5-HMF leading to the production of BTO and thus lead to lower yields of 5-HMF (below 10%). Remarkably, the dehydration reaction to 5-HMF and the hydrolysis of 5-HMF were both enhanced by the increase in water density at 400 °C.

Original languageEnglish
Pages (from-to)381-388
Number of pages8
JournalJournal of Supercritical Fluids
Issue number3
Publication statusPublished - 2007 Apr


  • 5-Hydroxymethylfurfural
  • Biomass
  • Carbohydrates
  • Supercritical water
  • d-Glucose

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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