Liquefaction of corn stover using industrial biodiesel glycerol

Yuanhua Wang, Jianping Wu, Yiqin Wan, Hanwu Lei, Fei Yu, Paul Chen, Xiangyang Lin, Yuhuan Liu, Roger Ruan

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Corn stover was liquefied using an industrial biodiesel glycerol as a liquefying agent at atmospheric pressure and low temperature. It was found that the liquefaction yield increased with increasing glycerol-to-corn stover ratios. Sulfuric acid, added as a catalyst, was found to improve liquefaction yield. The hydroxyl number, moisture content, acid number, pH value, viscosity, density, elemental composition, and higher heating value of the liquefied corn stover samples were determined. The liquefied corn stover showed a high hydroxyl number of 270-310 mg KOH/g. Fourier transform infrared spectroscopy (FTIR) results revealed the functional groups and confirmed the existence of the OH group in the liquefied corn stover, indicating that the liquefied corn stover is indeed a source of polyols and a potential chemical stock for the synthesis of polymers.

Original languageEnglish (US)
Pages (from-to)32-40
Number of pages9
JournalInternational Journal of Agricultural and Biological Engineering
Volume2
Issue number2
DOIs
StatePublished - Dec 1 2009

Keywords

  • Biopolyol
  • Corn stover
  • Industrial biodiesel glycerol
  • Liquefaction

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