Studies of the soluble part of oxidised coals

• Authors: Robert Pietrzak , Mieczysław Kozłowski , Helena Wachowska , Jan Yperman
• Languages of publication: EN

Abstracts

EN

Soluble products obtained from the oxidation of four types of coal, each characterised by different degree of coalification and different degree of sulphur content, are studied. The coals are oxidised with peracetic acid (PAA) and nitric acid. Analyses are performed by Atmospheric Pressure-Temperature Programmed Reduction (AP-TPR) and Fourier Transform Infrared Spectroscopy (FTIR). The soluble products contain much more sulphur than the insoluble products of oxidation. The products obtained from the reaction with HNO3 contain higher amounts of inorganic sulphur compounds, while those obtained from the reaction with PAA are characterised by an increased content of organic sulphur species.

Keywords

EN

Oxidation; soluble part of coal; sulphur; Atmospheric Pressure-Temperature Programmed Reduction; FTIR

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2004
• Volume: 2
• Issue: 2
• Pages: 278-289

Dates

published

1 - 6 - 2004

online

1 - 6 - 2004

Contributors

author

Robert Pietrzak

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland

author

Mieczysław Kozłowski

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland

author

Helena Wachowska

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland

author

Jan Yperman

• Laboratory of Applied Chemistry, CMK, Limburgs Universitair Centrum, B-3590, Diepenbeek, Belgium

References

• [1] D. Borah, M.K. Baruah, I. Haque: “Oxidation of high sulphur coal. Part 2. Desulphurisation of organic sulphur by hydrogen peroxide in presence of metal ions”,Fuel, Vol. 80, (2001), pp. 1475–1488. http://dx.doi.org/10.1016/S0016-2361(01)00002-3[Crossref]
• [2] R.R. Álvarez, C.J. Clemente, 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]
• [3] S.R. Palmer, E.J. Hippo, 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]
• [4] D. Borah, 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]
• [5] Á. Aller, O. Martínez, J.A. de Linaje, R. Méndez, 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]
• [6] T.Ö. Bozdemir, T. Durusoy, E. Erincin, Y. Yürüm: “Biodesulfurization of Turkish lignites. 1. Optimization of the growth parameters of Rhodococcus rhodochrous, a sulfur-removing bacterium”,Fuel, Vol. 75, (1996), pp. 1596–1600. http://dx.doi.org/10.1016/0016-2361(96)00118-4[Crossref]
• [7] Y. Yürüm, N. Altuntaş: “Air oxidation of Beypazari lignite at 50°C, 100°C and 150°C”,Fuel, Vol. 77, (1998), pp. 1809–1814. http://dx.doi.org/10.1016/S0016-2361(98)00067-2[Crossref]
• [8] H. Wang, B.Z. Długogorski, 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]
• [9] X. Zhou, C. Chriswell: “Determination of forms of organic sulfur in coal by stepwise oxidation with perchloric acid-ferric perchlorate mixture”,Fuel Processing Technology, Vol. 46, (1996), pp. 41–47. http://dx.doi.org/10.1016/0378-3820(95)00049-6[Crossref]
• [10] S.R. Palmer, E.J. Hippo, M.A. Kruge, J.C. Crelling: “Characterization and selective removal of organic sulfur from Illinois Basin coals”,Coal Prep. Vol. 10, (1992), pp. 93–106. http://dx.doi.org/10.1080/07349349208905195[Crossref]
• [11] R. Pietrzak, 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]
• [12] M. Kozłowski, R. Pietrzak, H. Wachowska, 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]
• [13] B.B. Majchrowicz, J. Yperman, J. Mullens, L.C. Van Poucke: “Automated potentiometric determination of sulfur functional groups in fossil fuels”,Analytical Chemistry, Vol. 63, (1991), pp. 760–763. http://dx.doi.org/10.1021/ac00008a004[Crossref]
• [14] W. Radmacher, P. Mohrhauer: “Demineralizing of coal for analytical purposes”Brennstoff-Chemie, Vol. 37, (1956), pp. 353–0358.
• [15] S.M. Ahmed, 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]
• [16] S.M. Ahmed, 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.
• [17] K. Ismail, S.C. Mitchell, S.D. Brown, C.E. Snape, A.C. Buchanan III, P.F. Britt, D.V. Franco, I.I. Maes, J. Yperman: “Silica-immobilized sulfur compounds as solid calibrants for temperature-programmed reduction and probes for the thermal behavior of organic sulfur forms in fossil fuels”,Energy & Fuels, Vol. 9, (1995), pp. 707–716. http://dx.doi.org/10.1021/ef00052a020[Crossref]
• [18] I.I. Maes, J. Yperman, H. Van den Rul, D.V. Franco, J. Mullens, L.C. Van Poucke, G. Gryglewicz, P. Wilk: “Study of coal-derived pyrite and its conversion products using atmospheric pressure temperature-programmed reduction”,Energy & Fuels, Vol. 9, (1995), pp. 950–955. http://dx.doi.org/10.1021/ef00054a002[Crossref]
• [19] J. Van Aelst, J. Yperman, D.V. Franco, L.C. Van Poucke, A.C. Buchanan, III, P.F. Britt: “Study of silica-immobilized sulfur model compounds as calibrants for the AP-TPR study of oxidized coal samples”,Energy & Fuels, Vol. 14, (2000), pp. 1002–1008. http://dx.doi.org/10.1021/ef000019n[Crossref]
• [20] A. Volborth:Oal Science and Chemistry, Elsevier, Amsterdam, Oxford, New York, Tokyo, 1987.
• [21] J.B. Green, S.E. Manahan: “Polarographic characterization of nitrohumic acids prepared by nitric acid oxidation of coal”,Analytical Chemistry, Vol. 51, (1979), pp. 1126–1129. http://dx.doi.org/10.1021/ac50044a009[Crossref]
• [22] T. Grzybek, R. Pietrzak, H. Wachowska: “X-ray photoelectron spectroscopy study of oxidized coals with different sulphur content”,Fuel Processing Technology, Vol. 77–78, (2002), pp. 1–7. http://dx.doi.org/10.1016/S0378-3820(02)00058-9[Crossref]
• [23] I.I. Maes, G. Gryglewicz, J. Yperman, D.V. Franco, J. Mullens, L.C. Van Poucke: “Effect of calcium and calcium minerals in coal on its thermal analysis”,Fuel, Vol. 76, (1997), pp. 143–147. http://dx.doi.org/10.1016/S0016-2361(96)00195-0[Crossref]
• [24] M. Kozłowski, H. Wachowska, J. Yperman, D.V. Franco, J. Mullens, L.C. Van Poucke: “Atmospheric-pressure temperature-programmed reduction study of highsulfur coals reduced in a potassium/liquid ammonia system”,Energy & Fuels, Vol. 12, (1998), pp. 1142–1147. http://dx.doi.org/10.1021/ef970223j[Crossref]
• [25] M. Kozłowski, R. Pietrzak, S. Mullens, H. Wachowska, J. Yperman: “Study of the desulfurisation of Polish coal by two selective oxidative treatments” In:Proceedings of the 11th ICCS, Exploring the Horizons of Coal, 2001, San Francisco (USA), International Energy Agency, San Francisco (USA), 2001, pp. 1–4.
• [26] R.M. Silverstein, G.C. Bassler, T.C. Morrill: “Spectrometric Identification of Organic Compounds”, In: John Wiley & Sons INC. (5th Ed.) New York, Chichester, Brisbane, Toronto, Singapore, 1991.
• [27] R.A. Nyquist, R.O. Kagel:Infrared Spectra of Inorganic Compounds, New York and London, 1971.
• [28] P.C. Painter, J. Youtcheff, P.H. Given: “Concerning the putative presence of nitrate in lignites”,Fuel, Vol. 59, (1980), pp. 523–526. http://dx.doi.org/10.1016/0016-2361(80)90183-0[Crossref]
• [29] S.R. Palmer, E.J. Hippo, M.A. Kruge, J.C. Crelling: “Characterization of Organic Sulfur Compounds in Coals and Coal Macerals”, In: W.L. Orr, C.M. White (Eds.):Geochemistry of Sulfur in Fossil Fuels, ACS Symposium Series 429, American Chemical Society, Washington, DC, 1990, Chapter 18, pp. 296–315. http://dx.doi.org/10.1021/bk-1990-0429.ch018[Crossref]

Identifiers

DOI

10.2478/BF02475573