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Oxidation of Ash Free Coal from Lignite and Anthracite Coals in a Molten Carbonate Fuel Cell
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 Title & Authors
Oxidation of Ash Free Coal from Lignite and Anthracite Coals in a Molten Carbonate Fuel Cell
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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% , 17 mol% , 14 mol% ). 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.
Ash free coal;Solvent extraction;Lignite;Anthracite coal;Molten carbonate fuel cell;
 Cited by
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. crossref(new window)

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. crossref(new window)

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.

P. Chen, "Study on Integrated Classification System for Chinese Coal", Fuel Proc. Technol., Vol. 62, 2000, p. 77. crossref(new window)

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. crossref(new window)

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.

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. crossref(new window)

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.

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. crossref(new window)

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. crossref(new window)

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. crossref(new window)

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.

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.

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. crossref(new window)

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. crossref(new window)

D. W. Van Krevelen, "Coal Typology - Chemistry - Physics- Constitution", 3rd edition, Elsevier Science Publishers, Amsterdam, 1993.

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.

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.