Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지

A Study on Production of Air Pollutants and Combustion Efficiency of Anthracite-Bituminous Coal Blend Combustor Using Fluidized Bed

유동층을 이용한 유,무연탄 혼합 연소로에서 대기오염물질 생성과 연소효율 연구

  • Cho, Sang-Won (Dept. of Environmental Technalogy, Chang-Won Polytechnic College) ;
  • Min, Byoung-Chul (Dept. of Environmental Technalogy, Chang-Won Polytechnic College)
  • 조상원 (창원기능대학 환경기술학과) ;
  • 민병철 (창원기능대학 환경기술학과)
  • Received : 1997.03.10
  • Accepted : 1997.05.28
  • Published : 1997.06.10

Abstract

We have been studied that combustion efficiency and the production of air pollution of anthracite-bituminous coal blend in a fluidized bed coal combustor. Also, the reaching time of steady state condition have been studied. This experimental results are presented as follows. As the height of fluidized bed combustor becomes higher, the concentrations of $SO_2$ and NOx mainly increased. Also, as anthracite fraction increased, the emission of $SO_2$ concentration was increased but, the variation of $NO_X$ concentration was negligible according to anthracite fraction. When anthracite fraction ratio was increased, elutriation rate was increased and exit combustible content over feeding combustible content was increased. Regardless of anthracite fraction ratio the uncombustible weight percentage according to average diameter of elutriation particles were approximately high in the case of fine particles. Over bed temperature $850^{\circ}C$ and excess air 20%, the difference of combution at the velocity 0.3m/s, bed temperature $850^{\circ}C$, the excess air 20%.

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