A novel approach for 1,2-propylene glycol production from biomass-derived lactic acid

Jiefeng Xiao, Zhibao Huo, Dezhang Ren, Song Zhang, Jiang Luo, Guodong Yao, Fangming Jin

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A novel and efficient process for the production of 1,2-propylene glycol with high productivity and high selectivity from biomass-derived lactic acid over CuO was investigated. As a result, CuO exhibited a high catalytic activity while Zn acted as a reductant for the conversion of lactic acid to 1,2-propylene glycol. Among the various reaction parameters, such as catalysts, reductants, temperature, water filling and reaction time we investigated, a 93% yield of 1,2-propylene glycol in the presence of 0.83 mmol lactic acid, 5 mmol CuO and 30 mmol Zn with 35% water filling at 250°C for 2 h was achieved. In addition, a carbon balance at optimum reaction conditions by TOC indicated that approximately 99% lactic acid was converted into liquid products in the transformation. In situ formed hydrogen by the oxidation of Zn in water is effective for the transformation compared to added gases hydrogen. The proposed mechanism for the conversion of lactic acid to 1,2-propylene glycol over CuO is also discussed.

Original languageEnglish
Pages (from-to)793-798
Number of pages6
JournalProcess Biochemistry
Volume50
Issue number5
DOIs
Publication statusPublished - 2015 May 1

Keywords

  • 1,2-Propylene glycol
  • Biomass
  • CuO
  • Hydrothermal reactions
  • Lactic acid

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

Fingerprint Dive into the research topics of 'A novel approach for 1,2-propylene glycol production from biomass-derived lactic acid'. Together they form a unique fingerprint.

Cite this