Synthesis Gas Production from Gasification of Woody Biomass

목질계 바이오매스로부터 가스화에 의한 합성가스 제조 연구

  • 조원준 (한국가스공사 연구개발원) ;
  • 모용기 (한국가스공사 연구개발원) ;
  • 송택용 (한국가스공사 연구개발원) ;
  • 백영순 (한국가스공사 연구개발원) ;
  • 김승수 (강원대학교 삼척캠퍼스 화학공학과)
  • Received : 2010.10.25
  • Accepted : 2010.12.17
  • Published : 2010.12.31

Abstract

Hydrogen is an alternative fuel for the future energy which can reduce pollutants and greenhouse gases. Synthesis gas has played an important role of synthesizing the valuable chemical compounds, for example methanol, DME and GTL chemicals. Renewable biomass feedstocks can be potentially used for fuel and chemicals. Current thermal processing techniques such as fast pyrolysis, slow pyrolysis, and gasification tend to generate products with a large slate of compounds. Lignocellulose feedstocks such as forest residues are promising for the production of bio-oil and synthesis gas. Pyrolysis and gasification was investigated using thermogravimetric analyzer (TGA) and bubbling fluidized bed gasification reactor to utilize forest woody biomass. Most of the materials decomposed between $320^{\circ}C$ and $380^{\circ}C$ at heating rates of $5{\sim}20^{\circ}C$/min in thermogravimetric analysis. Bubbling fluidized bed reactor was used to study gasification characteristics, and the effects of reaction temperature, residence time and feedstocks on gas yields and selectivities were investigated. With increasing temperature from $750^{\circ}C$ to $850^{\circ}C$, the yield of char decreased, whereas the yield of gas increased. The gaseous products consisted of mostly CO, $CO_2$, $H_2$ and a small fraction of $C_1-C_4$ hydrocarbons.

Keywords

Woody biomass;Pyrolysis gasification facility;Synthesis gas;Fluidized bed reactor;Thermal gravimetric analyzer(TGA);Char;DME

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