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%.

Keywords

References

  1. 대한환경공학회지 v.12 김재범;홍성창;오광중;도동섭
  2. Ph.D Thesis, 고려대학교 화학공학과 朴珍浩
  3. KIER-941129 청정 석탄 활용 기술 개발 한국에너지기술연구소
  4. PACHEC. v.3 Pack J. H.;Choi C. S.;Kang W. K.
  5. Ph.D Thesis, 고려대학교 화학공학과 홍성창
  6. Ph.D Thesis, 고려대학교 화학공학과 정현태
  7. Chemical Engineering Science v.43 P. Alvfors;G. Svedberg
  8. Trans. Faraday Soc. v.60 P. J. Anderson;P. L. Morgan
  9. Proc. Br, Ceram. Soc. v.3 P. J. Anderson;R. F. Horlock;R. G. Avery
  10. A.I.Ch.E. J. v.31 R. H. Borgwardt
  11. Ind. Engng. Chem. Res. v.28 R. H. Borgwardt
  12. 석사학위논문, 고려대학교 화학공학과 박태성
  13. 석사학위논문, 고려대학교 화학공학과 장현태
  14. Ph. Thesis, 고려대학교 화학공학과 차왕석
  15. Ph. Thesis, 부산수산대학교 환경공학과 張正國
  16. AIChE J. v.27 Fan, L. T.;Ho, T. C.;Hiraoka, S.;Walawonder, W. P.
  17. Fluidizertion Technology v.III Dale L. Keairms