한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제27권1호
  • /
  • Pages.63-70
  • /
  • 2016
  • /
  • 1738-7264(pISSN)
  • /
  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지
DOI QR코드

DOI QR Code

갈탄과 무연탄으로부터의 초청정석탄 제조 및 용융탄산염형 연료전지에서의 산화거동연구

Oxidation of Ash Free Coal from Lignite and Anthracite Coals in a Molten Carbonate Fuel Cell

  • 이상우 (한밭대학교 화학생명공학과) ;
  • 김유정 (한밭대학교 화학생명공학과) ;
  • 김태균 (한밭대학교 화학생명공학과) ;
  • 이기정 (한밭대학교 화학생명공학과) ;
  • 이충곤 (한밭대학교 화학생명공학과)
  • LEE, SANGWOO (Department of Chemical & Biological Engineering, Hanbat National University) ;
  • KIM, YUJEONG (Department of Chemical & Biological Engineering, Hanbat National University) ;
  • KIM, TAEKYUN (Department of Chemical & Biological Engineering, Hanbat National University) ;
  • LEE, KIJEONG (Department of Chemical & Biological Engineering, Hanbat National University) ;
  • LEE, CHOONGGON (Department of Chemical & Biological Engineering, Hanbat National University)
  • 투고 : 2015.11.30
  • 심사 : 2016.02.28
  • 발행 : 2016.02.29
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, ash free coals(AFCs) were produced with lignite and anthracite coals in a microwave. The AFCs were analyzed with proximate analysis, fourier transform infrared spectrometry (FTIR), X-ray diffraction analysis, and thermogravimetric analysis (TGA). The extraction yields of the AFCs were 16.4 wt%, 7.6 wt% at lignite and anthracite coal, respectively. The chemical and physical properties of the AFCs were similar regardless of the original coal types. Oxidation behavior of the AFCs was investigated by supplying a mixture of 3g of AFC and 3g of electrolyte into the coin-type molten carbonate fuel cell (MCFC). For the evaluation of AFC fuel performance, electrochemical analysis of the steady-state polarization and step-chronopotentiometry were conducted based on the standard hydrogen fuel (69 mol% $H_2$, 17 mol% $CO_2$, 14 mol% $H_2O$). The AFCs showed similar electrochemical oxidation behaviors regardless of the original coal types. The overvoltage of the AFCs was larger than the hydrogen fuel, although OCV of the AFCs was higher.

키워드

참고문헌

  1. T. Yoshida, T. Takanohashi, K. Sakanishi, I. Saito, M. Fujita, K. Mashimo, "The effect of extraction condition on Hyper Coal production (1) under room temperature filtration", Energy Fuels, Vol. 16, 2002. p. 1463. https://doi.org/10.1021/ef020058u
  2. T. Takanohashi, I. Saito, M. Iino, H. Aoki, K. Mashimo, "Effect of acid treatment on thermal extraction yield in ashless coal production", Energy Fuels, Vol. 18, 2004, p97. https://doi.org/10.1021/ef0340054
  3. S. H. Lee, S. D. Kim, "Technology for the Preparation of Ash-free Coal from Low Rank Coal", Korean Chem. Eng. Res., Vol. 46, No. 3, 2008, p. 443.
  4. P. Chen, "Study on Integrated Classification System for Chinese Coal", Fuel Proc. Technol., Vol. 62, 2000, p. 77. https://doi.org/10.1016/S0378-3820(99)00115-0
  5. S. Li, D. Tang, H. Xu, and Z. Yang, "Advanced Characterization of Physical Properties of Coals with Different Coal Structures by Nuclear Magnetic Resonance and X-ray Computed Tomography", Comput. Geo., Vol. 48, 2012, p. 220. https://doi.org/10.1016/j.cageo.2012.01.004
  6. Y. S. Yoon, J. H. Kim, P. Deepak, S. U. Son, G. K. Park, K. I. Park, Y. C. Seo, "Emission Characteristics of PM and PM2.5 from Bituminous Coal Combustion Power Plants", J. KOSAE, Vol. 26, No. 2, 2010, p. 151. https://doi.org/10.5572/KOSAE.2010.26.2.151
  7. A. Jorge, R. Orrego-Ruiz, E. Cabanzo, and M. Ospino, "Study of Colombian coals using photoacoustic Fourier transform infrared spectroscopy", Int. J. Coal Geology, Vol. 85, 2011, p. 307. https://doi.org/10.1016/j.coal.2010.12.013
  8. S. H. Lee, C. W. Park and E. K. Shon "Relationship between Chemical Properties of Korean Anthracite Coals and Combustion Characteristics", Korean Chemical Engineering Research, Vol 30, 1992, p. 368.
  9. T. M. Gur, M. Homel, and A. V. Virkar, "High Performance Solid Oxide Fuel Cell Operating on Dry Gasified Coal", J. Power Sources, Vol. 195, 2010, p. 1085. https://doi.org/10.1016/j.jpowsour.2009.08.098
  10. C. Li, Y. Shi, and N. Cai, "Performance Improvement of Direct Carbon Fuel Cell by Introducing Catalytic Gasification Process", J. Power Sources, Vol 195, 2010, p. 4660. https://doi.org/10.1016/j.jpowsour.2010.01.083
  11. S. H. Clarke, A. Dicks, K. Pointon, T. A. Smith, and A. Swann, "Catalytic Aspects of The Steam Reforming of Hydrocarbons in Internal Reforming Fuel Cells", Catal. Today, Vol 38, 1997, p. 411. https://doi.org/10.1016/S0920-5861(97)00052-7
  12. C. G. Lee, W. K. Kim, "Oxidation of ash-free coal in a direct carbon fuel cell", International Journal of Hydrogen Energy 40, 2015, p. 4575.
  13. C. G. Lee, D. L. Vu, "Oxidation of ash-free coal from sub-bituminous and bituminous coals in a direct carbon fuel cell", Korean Journal of Chemical Engineering, in print.
  14. G. Domazetis, M. Raoarun, B. D. James, J. Liesegang, P. J. Pigram, N. Brack, And R. Glaisher, "Analytical and characterization studies of organic and inorganic species in brown coal", Energy & Fuels, Vol. 20, 2006, p. 1556. https://doi.org/10.1021/ef0502251
  15. G. Lee, H. Hur, M. B. Song, "Oxidation behavior of carbon in a coin-type Direct Carbon Fuel Cell", J. Electrochem. Soc, Vol. 158, 2011, p. B410. https://doi.org/10.1149/1.3544941
  16. D. W. Van Krevelen, "Coal Typology - Chemistry - Physics- Constitution", 3rd edition, Elsevier Science Publishers, Amsterdam, 1993.
  17. N. Okuyama, N. Komatsu, T. Shigehisa, T. Kaneko and S. Tsuruya, "Hyper-coal process to produce the ash-free coal", Fuel Processing Technology, Vol. 86, 2005, p. 947.
  18. P. G. P. Ang and A. F. Sammells, "Influence of electrolyte composition on electrode kinetics in the molten carbonate fuel cell", Journal of the Electrochemical Society, Vol. 127, 1980, p. 1289.