Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Combustion & Flue Gas Characteristics of Coal at Pressurized Fluidized Bed Combustor

가압유동층연소로에서 석탄의 연소 및 배가스특성 연구

  • 한근희 (한국에너지기술연구소 유동층기술연구센터) ;
  • 오동진 (충남대학교 기계공학부) ;
  • 류정인 (충남대학교 기계공학부) ;
  • 진경태 (한국에너지기술연구소 유동층기술연구센터)
  • Published : 2000.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

The characteristics of combustion and of emissions in pressurized fluidized bed combustor are investigated. The pressure of the combustor is fixed at 6 atm, and the combustion temperatures are set to 850, 900, and $950^{\circ}C$. The gas velocities are 0.9, 1.1, and 1.3 m/s. The excess air ratio is varied from 5 to 35%. The coal used in the experiment is Shenhwa coal in China. All experiments are executed at 2m bed height. Consequently, NOx & $N_2O$ concentration in the flue gas is increased with incresing excess air ratio but $SO_2$ concentration is decreased with incresing excess air ratio. CO concentration is maintained below 100ppm at over 15% of excess air ratio.

Keywords

References

  1. 한근희, 선도원, 배달희, 손재익, 류정인, 1995, '상온 유동층에서 층내 전열관의 마모특성,' 대한기계학회 춘계학술대회논문집, KSME 95S236, pp. 444-449
  2. 진경태, 선도원, 이창근, 박재현, 한근희, 배달희, 조성후, 1998, 'Bench Scale 가압유동층 석탄연소기술 개발,' 통상산업부연구과제보고서, KIER-973402, pp. 28-41
  3. 이영우, 손재익, 1995, '복합발전용 가압유동층 연소기술,' 화학공업과 기술, 제13권 제1호, p. 53
  4. Moritomi, H., 1994, 'Pressurized Fluidized Bed Combustion,' APEC CCT training Course, Sydney, Nov.
  5. Podolski, W. F., Miller, S. A., 1983, 'Pressurized Fluidized Bed Combustion Technology,' Noyes Data Co., New Jersey
  6. Cuenca, M. A. and Anthony, E. J., 1995, 'PFBC,' 1st edition, Chapmen & Hall
  7. Baulch, D. L. and Drysdale, D. D., 1974, 'An Evaluation of the Rate Data for CO+OH-CO2+OH Reaction,' Combustion & Flame, Vol. 23, pp. 215-225 https://doi.org/10.1016/0010-2180(74)90059-5
  8. Arthur, J. R., 1951, 'Reactions between Carbon & Oxygen,' Trans. Faraday Soc., Vol. 52, pp. 16-178 https://doi.org/10.1039/TF9514700164
  9. Hayhurst, A. N. and Tucker, R. F., 1990, 'The Combustion of Carbon Monoxide in a Two-One Fluidized Bed,' Combustion & Flame, Vol. 79, pp. 175-189 https://doi.org/10.1016/0010-2180(90)90042-P
  10. Sarofin, A., 1994, 'Fluidized Bed Combustion and Emission Control Issues,' International Clean Coal Technology Symp. on PFBC, Kitakyusyu, Japan, July
  11. Verweyon, N., Renz, U. and Reinartz, A., 1991, 'Measurements and Modeling of $SO_2$ Emission from a Pressurized Bed Combustor,' Proceeding of The 11th International Conference on Fluidized Bed Combustion, p. 1401
  12. Yrjas, K. P., Lisa, K. and Hupa, M., 1993, 'Sulphur Adsortion Capacity of Different Limestones and Dolomites under Pressurized Combustion Conditions,' Proceeding of The 12th International Conference on Fluidized Bed Combustion, p. 265
  13. Koskinen, J., Lehtonen, P. and Sellakumar, K. M., 1995, 'Ultraclean Combustion of Coal in Ahlstrom Pyroflow PCFB Combustor,' Proceeding of The 13th International Conference on Fluidized Bed Combustion, p. 369
  14. Leckner, B., 1998, 'Fluidized Bed Combustion : Mixing and Pollutant Limitation,' Prog. Energy Comb. Sci., Vol. 24. pp. 31-61 https://doi.org/10.1016/S0360-1285(97)00021-X
  15. Johnsson, J. E., 1994, 'Formation and Reduction of Nitrogen Oxides in Fluidized Bed Combustion,' Fuel, Vol. 73(9), p. 1398 https://doi.org/10.1016/0016-2361(94)90055-8
  16. 신동신, 1994, '산업용 가스터빈의 저 NOx 연소기,' 대한기계학회지, 제34권 제12호, pp. 929-939
  17. 선도원, 손재익, 진경태, 이창근, 박재현, 한근희, 배달희, 조성호, 1997, '열병합 발전을 위한 순환유동층 석탄연소 기술개발,' 통상산업부연구과제보고서, KIER-973403, pp. 69-74
  18. Stringer J., Wright I. G., 1999, 'Material Issues in PFBC,' Proc. of The 16th International Pittsburgh Coal Conference, Oct. 11-15
  19. Verloop, C., Andries, J., and Hein, K., 1995, 'Experimental Study of the Effect of Ammonia Injection and Staged Combustion on the Emission of a PFBC,' Proc. of 13th Int. Conf. on PFBC, pp. 149-159
  20. Lu Y., Hippinen I., Kudjoi A., Jahkola A., 1994, 'N2O Emission from Pressurized Fluidized Bed Combustion of Gasfication Residues,' Proc. of 6th International Workshop on Nitrous Oxide Emissions, pp. 165-170