Kinetics of Cellulose Conversion at 25 MPa in Sub- and Supercritical Water

Mitsuru Sasaki, Tadafumi Adschiri, Kunio Arai

Research output: Contribution to journalArticlepeer-review

217 Citations (Scopus)

Abstract

Experiments of microcrystalline cellulose conversion in subcritical and supercritical water were conducted at temperatures between 290 and 400°C, a pressure of 25 MPa, and residence times of 0.02-13.1 s using a continuous-flow-type microreactor. First, the reaction mechanism of microcrystalline cellulose in subcritical and supercritical water was proposed on the basis of detailed product analyses. Next, the kinetic description of this reaction in subcritical and supercritical water using a grain model was carried out to verify the proposed reaction mechanism and consequently found that the reaction-rate models were able to express the reaction of microcrystalline cellulose at identical conditions.

Original languageEnglish
Pages (from-to)192-202
Number of pages11
JournalAIChE Journal
Volume50
Issue number1
DOIs
Publication statusPublished - 2004 Jan

Keywords

  • Microcrystalline cellulose
  • Reaction kinetics
  • Subcritical water
  • Supercritical water

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)

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