Effect of base catalysts on hydrothermal conversion of glycerin

Zheng Shen, Fangming Jin, Yalei Zhang, Atsushi Kishita, Kazuyuki Tohji

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

2 Citations (Scopus)

Abstract

Hydrothermal treatment of glycerin was carried out at 300°C by using eight base catalysts, including hydroxides of alkali metals, alkaline-earth metals and aluminum. All selected catalysts promoted the conversion of glycerin into lactic acid, except for Al(OH)3. The alkali-metal hydroxides were found to be more effective than alkaline-earth-metal hydroxides on hydrothermal conversion of glycerin. In the case of NaOH or KOH, a lactic acid yield of approximate 90% can be approached. Moreover, KOH was superior to NaOH on promoting the hydrothermal conversion of glycerin. Ba(OH)2 and Sr(OH)2 was found to convert glycerin further into formic and acetic acids. A decomposition mechanism of lactic acid with Ba(OH)2 was proposed.

Original languageEnglish
Title of host publication3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
DOIs
Publication statusPublished - 2009 Dec 31
Event3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009 - Beijing, China
Duration: 2009 Jun 112009 Jun 13

Publication series

Name3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

Other

Other3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
Country/TerritoryChina
CityBeijing
Period09/6/1109/6/13

Keywords

  • Base
  • Glycerin
  • Hydrothermal reaction
  • Lactic acid

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering

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