한국신재생에너지학회:학술대회논문집

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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The experimental study of 1 ton/day coal gasifier using Adaro coal

1 ton/day 석탄가스화기를 이용한 Adaro 탄의 가스화 특성 실험

  • 박세익 (한국전력공사 전력연구원) ;
  • 정재화 (한국전력공사 전력연구원) ;
  • 서혜경 (한국전력공사 전력연구원) ;
  • 이중원 (한국전력공사 전력연구원) ;
  • 주지선 (한국전력공사 전력연구원) ;
  • 지준화 (한국전력공사 전력연구원) ;
  • 김미영 (한국전력공사 전력연구원) ;
  • 김기태 (한국전력공사 전력연구원)
  • Published : 2010.06.17
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Abstract

Korea Electric Power Research Institute (KEPRI) has developed a compact coal-gasification system to accumulate our experiment skills. The combustion furnace for residual oil was modified as a small size coal gasifier. Recently, coal feeding system was also upgraded to control coal feed rate more accurately. Our research group has conducted several experiments to find out the effect of $O_2$/coal ratio on the cold gas efficiency. Furthermore, the effect of $N_2$/coal ratio on the transport characteristics was also studied. According to the calculation of heat and mass balance, the cold gas efficiency was estimated to the maximum at $O_2$/coal ratio of around 0.73. But small size gasifier such as ours required higher value of $O_2$/coal ratio than that of the theoretical estimation. On the optimal $N_2$/coal ratio, we noticed that the coal feed rate was intimately related with the transporting gas pressure and the pipe diameter.

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