Improvement of lactic acid production from cellulose with the addition of Zn/Ni/C under alkaline hydrothermal conditions

Shiping Zhang, Fangming Jin, Jiajun Hu, Zhibao Huo

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

The effect of Zn, Ni and activated carbon on the yield of lactic acid from cellulose was investigated to improve the lactic acid yield under alkaline hydrothermal conditions. The results showed that the lactic acid yield increased greatly in the presence of Zn, Ni and activated carbon. Central composite response surface method (RSM) design experimentation was used to find the optimal concentrations of Zn, Ni, activated carbon and NaOH, which indicated that 0.02. g Zn, 0.03. g Ni, 0.07. g activated carbon and 2.5. mol/L NaOH were the optimal concentrations. Under this condition, the highest lactic acid yield was 42%, which was much higher than previous results using only NaOH (15%). The confirmatory experiments on lactic acid yield proved that the proposed model of lactic acid yield can accurately predict the lactic acid yield from cellulose.

Original languageEnglish
Pages (from-to)1998-2003
Number of pages6
JournalBioresource Technology
Volume102
Issue number2
DOIs
Publication statusPublished - 2011 Jan 1

Keywords

  • Cellulose
  • Hydrothermal condition
  • Lactic acid
  • Response surface method (RSM)

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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