Formation of lactic acid from cellulosic biomass by alkaline hydrothermal reaction

X. Yan, F. Jini, A. Kishita, H. Enomoto, K. Tohji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Glucose, as a model compound of cellulosic biomass, was used as a test material. Ca(OH)2 and NaOH were selected as alkali. Results showed that both NaOH and Ca(OH)2, can promote the formation of lactic acid in a hydrothermal reaction of glucose. In the case of the addition of NaOH, lactic acid was obtained with a good yield of 27% based on a carbon base at 300°C for 60 s with a NaOH concentration of 2.5 M. In the case of the addition of Ca(OH)2, the highest yield of lactic acid is 20%, which occurred at 300°C for 60 s with a Ca(OH)2 concentration of 0.32 M. The formation mechanisms of lactic acid from glucose were also discussed according to intermediate products identified. Lactic acid may be generated via formaldehyde, glycolaldehyde besides via the aldose having three carbon atoms in hydrothermal reaction which all formed by the reverse aldol condensation of hexoses.

Original languageEnglish
Title of host publicationWater Dynamics - 5th International Workshop on Water Dynamics
Pages50-53
Number of pages4
DOIs
Publication statusPublished - 2008 Mar 17
Event5th International Workshop on Water Dynamics - Sendai, Japan
Duration: 2007 Sep 252007 Sep 27

Publication series

NameAIP Conference Proceedings
Volume987
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other5th International Workshop on Water Dynamics
CountryJapan
CitySendai
Period07/9/2507/9/27

Keywords

  • Alkali
  • Biomass
  • Cellulose
  • Hydrothermal reaction
  • Lactic acid

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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