The effects of torrefaction on compositions of bio-oil and syngas from biomass pyrolysis by microwave heating

Shoujie Ren, Hanwu Lei, Lu Wang, Quan Bu, Shulin Chen, Joan Wu, James Julson, Roger Ruan

Research output: Contribution to journalArticle

92 Scopus citations

Abstract

Microwave pyrolysis of torrefied Douglas fir sawdust pellet was investigated to determine the effects of torrefaction on the biofuel production. Compared to the pyrolysis of raw biomass, the increased concentrations of phenols and sugars and reduced concentrations of guaiacols and furans were obtained from pyrolysis of torrefied biomass, indicating that torrefaction as a pretreatment favored the phenols and sugars production. Additionally, about 3.21-7.50area% hydrocarbons and the reduced concentration of organic acids were obtained from pyrolysis of torrefied biomass. Torrefaction also altered the compositions of syngas by reducing CO2 and increasing H2 and CH4. The syngas was rich in H2, CH4, and CO implying that the syngas quality was significantly improved by torrefaction process.

Original languageEnglish (US)
Pages (from-to)659-664
Number of pages6
JournalBioresource Technology
Volume135
DOIs
StatePublished - May 2013

Keywords

  • Bio-oil
  • Microwave pyrolysis
  • Syngas
  • Torrefaction
  • Torrefied biomass

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