DOI QR코드

DOI QR Code

The Characteristics of Coal Gasification using Microwave Plasma

마이크로웨이브 플라즈마를 이용한 석탄가스화 특성 연구

  • Kim, Doo-Il (Clean Fuel Center, Korea Institute of Energy Research) ;
  • Lee, Jae-Goo (Clean Fuel Center, Korea Institute of Energy Research) ;
  • Kim, Yong-Ku (Clean Fuel Center, Korea Institute of Energy Research) ;
  • Yoon, Sang-Jun (Clean Fuel Center, Korea Institute of Energy Research)
  • 김두일 (한국에너지기술연구원 청정연료연구단) ;
  • 이재구 (한국에너지기술연구원 청정연료연구단) ;
  • 김용구 (한국에너지기술연구원 청정연료연구단) ;
  • 윤상준 (한국에너지기술연구원 청정연료연구단)
  • Received : 2012.01.30
  • Accepted : 2012.02.24
  • Published : 2012.02.28

Abstract

The investigation of clean and environment-friendly coal utilization technology is actively progressed due to high oil price and serious climate change caused by greenhouse gas emissions. In this study, the plasma gasification was performed using a 6kW microwave plasma unit under various reaction conditions: the particle sizes of coal ($45{\mu}m-150{\mu}m$), $O_2$/fuel ratio (0 - 1.3), and steam/fuel ratio (0 - 1.5). The $H_2$ composition decreases with decreasing coal particle size. With increasing $O_2$/fuel ratio, the $H_2$ composition in the syngas decreased while the $CO_2$ composition increased. As the steam/fuel ratio increased from 0 to 1.5, the $H_2$ composition in the syngas increased while the $CO_2$ composition decreased. From the results, it was proven that the variation of syngas composition greatly affected by $O_2$/fuel ratio than steam/fuel ratio. The $H_2$ composition in the syngas, carbon conversion, and cold gas efficiency increased with increasing plasma power.

Keywords

Coal;Gasification;Microwave;Plasma;Syngas

Acknowledgement

Supported by : 기초기술연구회, 지경부

References

  1. P. F. Godley, and L. Joseph, "Clean Coal Tech-nology Program; Model for Government/ Industry Cooperation", Energy Lay Journal, Vol. 1, 1994, p. 439.
  2. H. Seo, J. Chung, and J. Ju, "The Design Conditions and The Initial Operation Results of 1 Tom/Day Class Dry Feeding Coal-Gasification System", Trans. of the Korean Society of Hydrogen Energy, Vol. 20, No. 4, 2009, p. 352.
  3. http://www.gasification.org.
  4. B. G. Ivan, and I. M. Boris, "Some General Conclusions from the Results of Studies on Solid Fuel Steam Plasma Gasification", Fuel, Vol. 71, 1992, p. 895. https://doi.org/10.1016/0016-2361(92)90239-K
  5. P. M. Kanilo, V. I. Kazantsev, N. I. Rasyuk, K. Schunemann, and D. M. Vavriv, "Microwave Plasma Combustion of Coal", Fuel, Vol. 82, 2003, p. 187. https://doi.org/10.1016/S0016-2361(02)00201-6
  6. Q. Jieshan, H. Xiaojun, S. Tianjun, Z. Zongbin, Z. Ying, G. Shuhong, Z. Jialiang, and M. Tengcai, "Coal Gasification in Steam and Air Medium under Plasma Conditions: A Preliminary Study", Fuel Processing Technology, Vol. 85, 2004, p. 969. https://doi.org/10.1016/j.fuproc.2003.11.035
  7. Y. C. Choi, X. Y. Li, T. J. Park, J. H. Kim, and J. G. Lee, "Numerical Study on the Coal Gasification Characteristics in an Entrained Flow Coal Gasifier", Fuel, Vol. 80, 2001, p. 2193. https://doi.org/10.1016/S0016-2361(01)00101-6
  8. S. J. Yoon, Y. C. Choi, Y. I. Son, S. H. Lee, and J. G. Lee, "Gasification of Biodiesel By-product with Air or Oxygen to Make Syngas", Bioresource Technology, Vol. 101, 2010, p. 1227. https://doi.org/10.1016/j.biortech.2009.09.039
  9. C. Nenad, R. Branislav, M. Rastko, N. Olivera, and V. Miomir, "Experimental Investigation of Role of Steam in Entrained Flow Coal Gasification", Fuel, Vol. 86, 2007, p. 194. https://doi.org/10.1016/j.fuel.2006.06.015
  10. J. Phillips, "Gasification Combined Cycles 101", 2005.
  11. S. J. Yoon, J. G. Lee, "Syngas Production from Coal through Microwave Plasma Gasification: Influence of Oxygen, Steam, and Coal Particle Size", Energy & Fuels, Vol. 26, 2012, p. 524. https://doi.org/10.1021/ef2013584
  12. Y. C. Choi, T. J. Park, J. H. Kim, J. G. Lee, J. C. Hong, and Y. G. Kim, "Experimental Studies of 1Ton/Day Coal Slurry Feed Type Oxygen Blown, Entrained Flow Gasifier", Korean J. Chemical Engineering, Vol. 18, 2001, p. 493. https://doi.org/10.1007/BF02698296

Cited by

  1. Synthesisand Electrochemical Behaviors of Hybrid Carbon (ACF/Graphene) as Supports by Microwaves-irradiation Method for Polymer Exchange Membrane Fuel Cells (PEMFC) vol.24, pp.2, 2013, https://doi.org/10.7316/KHNES.2013.24.2.142
  2. Catalyst vol.25, pp.5, 2014, https://doi.org/10.7316/KHNES.2014.25.5.459