Experimental study on bio-oil pyrolysis/gasification

  • Zhang M
  • Chen H
  • Gao Y
 et al. 
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Abstract

This study aims to understand the mechanism of bio-oil gasification and the influence of operating parameters on the properties of the gas products. Firstly, the pyrolysis/gasification of bio-oil was performed using a thermogravimetric analyzer (TGA). The evaporation of gas products from bio-oil were measured on-line with coupled Fourier Transform Infrared Spectroscopy (FTIR). The main gas products were CO, CO2, CH4, H2O, and light hydrocarbons, etc. Organics mainly evolved out at lower temperature (100-200°C), while the cracking of heavy hydrocarbon components took place at higher temperature (>200°C). Simultaneously, the gasification behavior of bio-oil was investigated in a fixed bed gasification reactor under different temperature and residence time. The gas product evolving was checked using micro-gas chromatography. It was observed that the yield of CO and H2 increased with increasing gasification temperature above 600°C, and the maximum value was obtained at 800°C. Prolonging the residence time was not favorable for the upgrading of syngas quality.

Author-supplied keywords

  • Bio-oil
  • Fixed bed
  • Pyrolysis/gasification
  • Syngas
  • TGA-FTIR

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Authors

  • Mou Zhang

  • Han Ping Chen

  • Ying Gao

  • Rui Xue He

  • Hai Ping Yang

  • Xian Hua Wang

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