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2005 | 3 | 4 | 852-865

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The effect of flame coal oxidation on the solid and soluble products of its extraction


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Solid and soluble products of THF and CH2Cl2 extraction of flame coal oxidised by four different oxidising agents (peroxyacetic acid (PAA), 5% HNO3, O2/Na2CO3, air/125 °C) were studied by elemental analysis and FTIR. The extraction yield with THF was much higher than that with CH2Cl2 for all samples. The greatest changes in elemental composition were in the extracts from coal oxidised by nitric acid. The sulphur content was lowest in extracts from coal oxidised with 5% HNO3 and PAA. FTIR confirmed that coal treatment with nitric acid incorporates nitrogen into the coal structure.










Physical description


1 - 12 - 2005
1 - 12 - 2005


  • Laboratory of Coal Chemistry and Technology, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland
  • Laboratory of Coal Chemistry and Technology, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland
  • Laboratory of Coal Chemistry and Technology, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland


  • [1] R Pietrzak and H Wachowska: “Low Temperature Oxidation of Coals of Different Rank and Different Sulphur Content”, Fuel, Vol. 82, (2003), pp. 705–713. http://dx.doi.org/10.1016/S0016-2361(02)00364-2[Crossref]
  • [2] S.R. Palmer, E.J. Hippo and X.A. Dorai: “Chemical Coal Cleaning using Selective Oxidation”, Fuel, Vol. 73., (1994), pp. 161–169. http://dx.doi.org/10.1016/0016-2361(94)90109-0[Crossref]
  • [3] D. Borah and M.K. Baruah: “Electron Transfer Process. Part 2. Desulphurization of Organic Sulphur from Feed and Mercury-Treated Coals Oxidized in Air at 50, 100 and 150°C”, Fuel, Vol. 79, (2000), pp. 1785–1796. http://dx.doi.org/10.1016/S0016-2361(00)00042-9[Crossref]
  • [4] Á. Aller, O. Martínez, J.A. de Linaje, R. Méndez and A. Morán: “Biodesulphurisation of Coal by Microorganisms Isolated from the Coal Itself”, Fuel Processing Technology, Vol. 69, (2001), pp. 45–57. http://dx.doi.org/10.1016/S0378-3820(00)00127-2[Crossref]
  • [5] H. Wang, B.Z. Długogorski and E.M. Kennedy: “Experimental Study on Low-Temperature Oxidation of an Australian Coal”, Energy & Fuels, Vol. 13, (1999), pp. 1173–1179. http://dx.doi.org/10.1021/ef990040s[Crossref]
  • [6] A Czapliński: Wegiel kamienny. Wydawnictwo AGH, Kraków, 1994.
  • [7] M. Nishioka: “Multistep Extraction of Coal”, Fuel, Vol. 70, (1991), pp. 1413–1419. http://dx.doi.org/10.1016/0016-2361(91)90007-W[Crossref]
  • [8] M. Nishioka and J.W. Larsen: “Association of Aromatic Structures in Coals”, Energy & Fuels, Vol. 4, (1990), pp. 100–106. http://dx.doi.org/10.1021/ef00019a018[Crossref]
  • [9] J.W. Larsen and M. Mohammadi: “Structural Changes in Coals Due to Pyridine Extraction”, Energy & Fuels, Vol. 4, (1990), pp. 107–110. http://dx.doi.org/10.1021/ef00019a019[Crossref]
  • [10] S. Jasieńko: Chemia i fizyka wegla, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław, 1995.
  • [11] C.C. Giri and D.K. Sharma: “Kinetic Studies and Shrinking Core Model on Solvolytic Extraction Coal”, Fuel Processing Technology, Vol. 68, (2000), pp. 97–109. http://dx.doi.org/10.1016/S0378-3820(00)00112-0[Crossref]
  • [12] W.R. Biggs and J.C. Fetzer: “Analytical Techniques for Large Polycyclic Aromatic Hydrocarbons: a Review”, Trends in Analytical Chemistry, Vol. 15, (1996), pp. 196–206.
  • [13] Y. Rong, Z. Haijing, Z. Chuguang and X. Minghou: “Emissions of Organic Hazardous Air Pollutants During Chinese Coal Combustion”, Energy, Vol. 27, (2002), pp. 485–503. http://dx.doi.org/10.1016/S0360-5442(02)00003-8[Crossref]
  • [14] K. Miura: “Mild Conversion of Coal for Producing Valuable Chemicals”, Fuel Processing Technology, Vol. 62, (2000), pp. 119–135. http://dx.doi.org/10.1016/S0378-3820(99)00123-X[Crossref]
  • [15] F. Pinto, I. Gulyurtlu, L.S. Lobo and I. Cabrita: “Effect of Coal Pre-Treatment with Swelling Solvents on Coal Liquefaction”, Fuel, Vol. 78, (1999), pp. 629–634. http://dx.doi.org/10.1016/S0016-2361(98)00193-8[Crossref]
  • [16] I. de Marco Rodriguez, M.J. Chomon, B. Caballero, P.L. Arias and J.A. Legarreta: “Liquefaction Behaviour of a Spanish Subbituminous A Coal Under Different Conditions of Hydrogen Availability”, Fuel Processing Technology, Vol. 58, (1998), pp. 17–24. http://dx.doi.org/10.1016/S0378-3820(98)00084-8[Crossref]
  • [17] Y. Önal and S. Akol: “Influence of Pretreatment of Solvent-Swelling and Extraction of Some Turkish Lignites”, Fuel, Vol. 82, (2003), pp. 1297–1304. http://dx.doi.org/10.1016/S0016-2361(03)00033-4[Crossref]
  • [18] G. Grygielewicz and P. Rutkowski: “Identification of Organic Sulfur Compounds in Supercritical Extracts from Polish Lignite”, Energy & Fuels, Vol. 15, (2000), pp. 8–13. http://dx.doi.org/10.1021/ef000085p[Crossref]
  • [19] M. Krzesińska: “The Use of Ultrasonic Wave Propagation Parameters in the Characterization of Extracts from Coals”, Fuel, Vol. 77, (1998), pp. 649–653. http://dx.doi.org/10.1016/S0016-2361(97)00203-2[Crossref]
  • [20] F.C. Mayo, J.S. Zeveley and L.A. Pavelka: “Extractions and Reactions of Coals Below 100°C: 1. Solubilities of Coals in Pyridine and Amines”, Fuel, Vol. 67, (1988), pp. 595–599. http://dx.doi.org/10.1016/0016-2361(88)90285-2[Crossref]
  • [21] K. Ouchi, S. Itoh, M. Makabe and H. Itoh: “Pyridine Extractable Material from Bituminous Coal, its Donor Properties and its Effect on Plastic Properties”, Fuel, Vol. 68, (1989), pp. 735–740. http://dx.doi.org/10.1016/0016-2361(89)90212-3[Crossref]
  • [22] S. Mukherjee and P.C. Borthakur: “Chemical Demineralization/Desulphurization of High Sulphur Coal Using Sodium Hydroxide and Acid Solutions”, Fuel, Vol. 80, (2001), pp. 2037–2040. http://dx.doi.org/10.1016/S0016-2361(01)00094-1[Crossref]
  • [23] Ch. Li, T. Takanohashi, T. Yoshida, I. Saito, H. Aoki and K. Mashino: “Effect of Acid Treatment on Thermal Extraction Yield in Ashless Coal Production”, Fuel, Vol. 83, (2004), pp. 727–732. http://dx.doi.org/10.1016/j.fuel.2003.06.002[Crossref]
  • [24] H. Wachowska and M. Kozłowski: “Studies of Reduction and Reductive Alkylation of Coals in the Potassium/Liquid Ammonia System: 2. Characterization of Coal Extracts”, Fuel, Vol. 74, (1995), pp. 1328–1332. http://dx.doi.org/10.1016/0016-2361(95)00087-L[Crossref]
  • [25] W. Radmacher and O. Mohrhauer: “Demineralizing of Coal for Analytical Purposes”, Brennstoff-Chemie, Vol. 37, (1956), pp. 353–358.
  • [26] H. Wachowska, M. Kozłowski and M. Pietrowski: „Analiza form siarki w polskich weglach kamiennych”, Karbo-Energochemia-Ekologia, Vol. 41, (1996), pp. 199–204.
  • [27] M. Kozłowski, R. Pietrzak, H. Wachowska and J. Yperman: “AP-TPR study of Sulphur in Coals Subjected to Mild Oxidation. Part 1. Demineralised Coals”, Fuel, Vol. 81, (2002), pp. 2397–2405. http://dx.doi.org/10.1016/S0016-2361(02)00199-0[Crossref]
  • [28] Polish Standards PN-90/G-04525: Oznaczanie zawartości węgla i wodorū.
  • [29] Polish Standards PN-92/G-04523: Oznaczanie zawartości azotu.
  • [30] S.M. Ahmed and B.J.P. Whalley: “Analysis of Total Sulphur in Canadian Coals by a Modified Oxygen-Flask Method Using Arsenazo (III)”, Fuel, Vol. 51, (1972), pp. 190–193. http://dx.doi.org/10.1016/0016-2361(72)90078-6[Crossref]
  • [31] S.M. Ahmed and B.J.P. Whaley: “The Use of Arsenazo (III) in the Determination of Total Sulphur in Coal by the Oxygen-Flask Method”, Fuel, Vol. 48, (1969), pp. 217–219.
  • [32] M. Kozłowski, R. Pietrzak, H. Wachowska and J. Yperman: “Study of Sulphur in Oxidised Coals by AP-TPR”, Journal of Thermal Analysis and Calorimetry, Vol. 75, (2004), pp. 125–134. http://dx.doi.org/10.1023/B:JTAN.0000017335.27974.3f[Crossref]
  • [33] R.R. Álvarez, C.J. Clemente and D. Gómez-Limón: “Evolution of the Organic Sulfur and Other Components During Nitric Acid Leaching of Mequinenza Coal”, Fuel, Vol. 76, (1997), pp. 1445–1450. http://dx.doi.org/10.1016/S0016-2361(97)00065-3[Crossref]
  • [34] K. Mae, Ch. Song, M. Shimada and K. Miura: “Observation of Retrogressive Reactions under Liquefaction Conditions Utilizing the Oxidized Coal Completely Dissolved in Solvent at Room Temperature”, Energy & Fuels, Vol. 12, (1998), pp. 975–980. http://dx.doi.org/10.1021/ef980038l[Crossref]
  • [35] J. Lukac, R. Álvarez, L. Turcaniová, C. Clemente and D. Gómez-Limón: “Ecological Problems Concerning the Amelioration of Slovak Energetic Coals”, Fuel Processing Technology, Vol. 36, (1993), pp. 277–282. http://dx.doi.org/10.1016/0378-3820(93)90037-5[Crossref]
  • [36] R.M. Silverstein, G.C. Bassler and T.C. Morrill: Spectrometric Identification of Organic Compounds, 5th ed., John Wiley & Sons, Inc., New York, 1991.
  • [37] D.J. Boron and S.R. Taylor: Processing and Utilization of High Sulfur Coals, Y.A. Attia (Ed.), Elsevier, New York, 1985, p. 337.
  • [38] M. Brubaker and T. Stoicos: Processing and Utilization of High Sulfur Coals, Y.A. Attia (Ed.), Elsevier, New York, 1985, p. 312.

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