한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제33권5호
  • /
  • Pages.473-479
  • /
  • 2017
  • /
  • 1598-7132(pISSN)
  • /
  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지
DOI QR코드

DOI QR Code

산소/이산화탄소 농도 변화에 따른 석탄과 폐기물 연료의 순산소 연소 특성

Oxy-combustion Characteristics of Coal and Waste Fuels with the Concentrations of Oxygen and Carbon Dioxide

  • 강신욱 (충북대학교 환경공학과) ;
  • 박정민 (충북대학교 환경공학과) ;
  • 이상섭 (충북대학교 환경공학과)
  • Kang, Sin-Wook (Department of Environmental Engineering, Chungbuk National University) ;
  • Park, Jeong Min (Department of Environmental Engineering, Chungbuk National University) ;
  • Lee, Sang-Sup (Department of Environmental Engineering, Chungbuk National University)
  • 투고 : 2017.08.17
  • 심사 : 2017.09.11
  • 발행 : 2017.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This study was designed to understand characteristics of oxy-combustion of coal, dried sewage sludge and solid refuse fuel (SRF). Thermogravimetric analysis was conducted by burning the fuels with air, 21% oxygen ($O_2$)/79% carbon dioxide ($CO_2$) and 30% $O_2/70%$ $CO_2$. Heating rates were varied as 5, 10, 25, 40 and $100^{\circ}C/min$. Complete coal combustion was found at the heating rates of 5, 10, 25 and $40^{\circ}C/min$, and different combustion behavior was found with the gas composition at the heating rates of 10, 25, 40 and $100^{\circ}C/min$. Coal combustion with 30% $O_2/70%$ $CO_2$ showed the highest while coal combustion with 21% $O_2/79%$ $CO_2$ showed the lowest combustion rate. On the other hand, the combustion of dried sewage sludge and SRF showed similar combustion behavior with respect to the combustion gas composition. This suggests that oxy-combustion of dried sewage sludge and SRF which contain a large amount of volatile matter may show similar combustion behavior to their air combustion.

키워드

참고문헌

  1. Croiset, E., K. Thambimuthu, and A. Palmer (2000) Coal Combustion in $O_2$/$CO_2$ Mixtures Compared with Air, The Canadian Journal of Chemical Engineering, 78(2), 402-407. https://doi.org/10.1002/cjce.5450780217
  2. Hu, Y.Q., N. Kobayashi, and M. Hasatani (2001) The reduction of recycled-NOx in coal combustion with $O_2$/recycled flue gas under low recycling ratio, Fuel, 80, 1851-1855. https://doi.org/10.1016/S0016-2361(01)00048-5
  3. IEA (2016) $CO_2$ emissions from fuel combustion. International Energy Agency.
  4. Kang, S.W., S.H. Shim, S.H. Jeong, J.H. Jung, and S.S. Lee (2012) Mercury Emission Characteristics from Co-Combustion of Coal and Sludge, Journal of Korea Society for Atmospheric Environment, 28(2), 182-189. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2012.28.2.182
  5. Kim, W.-H. (2003) Fludized Bed Incineration Technology for Refuse Derived Fuel from Municipal Solid Wastes, Report on the Development of Energy and Resource Technology.
  6. Kimura, N., K. Omata, T. Kiga, S. Takano, and S. Shikisima (1995) The Characteristics of pulverized coal combustion in $O_2$/$CO_2$ Mixtures for $CO_2$ recovery, Energy Conversion and Management, 36(6), 805-808. https://doi.org/10.1016/0196-8904(95)00126-X
  7. Li, Q.Z., C.S. Zhao, X.P. Chen, W.F. Wu, and Y.J. Li (2009) Comparison of pulverized coal combustion in air and in $O_2$/$CO_2$ mixtures by thermo-gravimetric analysis, Journal of Analytical and Applied Pyrolysis, 85(1), 521-528. https://doi.org/10.1016/j.jaap.2008.10.018
  8. Liu, H., R. Zailani, and B.M. Gibbs (2005) Pulverized coal combustion in air and in $O_2$/$CO_2$ mixtures with NOx recycle, Fuel, 2109-2115.
  9. Liu, K. and H. Okazaki (2003) Simultaneous easy $CO_2$ recovery and drastic reduction of SOx and NOx in $O_2$/$CO_2$ coal combustion with heat recirculation, Fuel, 82, 1427-1436. https://doi.org/10.1016/S0016-2361(03)00067-X
  10. Niu, S.B., M.Q. Chen, Y. Li, and F. Xue (2016) Evaluation on the oxy-fuel combustion behavior of dried sewage sludge, Fuel, 178, 129-138. https://doi.org/10.1016/j.fuel.2016.03.053
  11. Okazaki, K. and T. Ando (1997) NOx reduction mechanism in coal combustion with recycled $CO_2$, Energy, 22(2-3), 207-215. https://doi.org/10.1016/S0360-5442(96)00133-8
  12. Park, J.M., S.I. Keel, J.H. Yun, J.H. Yun, D.S. Oh, and S.S. Lee (2016) Combustion Characteristics of Coal and Waste Fuels by Thermogravimetric Analysis, Journal of Korea Society of Waste Management, 33(5), 461-466. (in Korean with English abstract) https://doi.org/10.9786/kswm.2016.33.5.461
  13. Pei, X., B. He, L. Yan, C. Wang, W. Song, and J. Song (2013) Process simulation of oxy-fuel combustion for a 300 MW pulverized coal-fired power plant using Aspen Plus, Energy Conversion and Management, 76, 581-587. https://doi.org/10.1016/j.enconman.2013.08.007
  14. Qiu, J., H. Liu, C. Wen, H. Wu, and H. Zeng (2007) PM, Mercury and trace metals emissions in oxy-coal combustion, American chemical Society, 52(1), 192-193.
  15. Yuzbasi, N.S. and S. Nevin (2011) Air and oxy-fuel combustion characteristics of biomass/lignite blends in TGA-FTIR, Fuel Processing Technology, 92(5), 1101-1108. https://doi.org/10.1016/j.fuproc.2011.01.005