Characteristics of Co-Combustion of Korean Anthracite with Bituminous Coal in a Circulating Fluidized Bed

순환유동층에서 유.무연탄 혼소 특성

  • 이종민 (한전 전력연구원 수화력발전연구소) ;
  • 김재성 (한전 전력연구원 수화력발전연구소) ;
  • 이은모 (충남대학교 기계공학과)
  • Published : 2005.09.30


The characteristics of co-combustion of Korean anthracite and bituminous coal was determined in a TGA and a lab-scale CFB reactor. The combustion reactivity of Korean anthracite (E = 51.2 kcal/mol) was much lower than that of bituminous coal (E = 14.5 kcal/mol). As the addition amount of the bituminous coal into the anthracite was increased, the reactivity of the anthracite was found to be improved. The effluent rate of the emission gases from the CFB reactor was not changed appreciably when each coal burned. As the bituminous coal was added, however, the effluent rate of the emissions was increased. The unburned carbon in fly ash from the CFB reactor was decreased with increasing the ratio of bituminous coal in co-combustion. But as the ratio of the bituminous coal was larger than 40 %, the combustion reactivity was not increased any more.