Influence of coal composition and operating conditions on the release of alkali species during combustion of hard coal

Energy and Fuels

Volumn 21, Issue 6, 2007, Pages 3240-3248

  Oleschko, Holger ^a   Müller, Michael ^a  

^a FORSCHUNGSZENTRUM JÜLICH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ALKALI METALS; CHEMICAL ANALYSIS; COAL COMBUSTION; LEACHING; THERMODYNAMIC STABILITY;

ALKALI RELEASE; PRESSURIZED PULVERIZED COAL COMBUSTION; SOLID FUEL CONVERSION; THERMODYNAMIC EQUILIBRIUM;

ANTHRACITE;

EID: 37249018640     PISSN: 08870624     EISSN: None     Source Type: Journal    
DOI: 10.1021/ef700400j     Document Type: Article

References (18)

1. Osborn, G. A. Review of Sulfur and Chlorine Retention in Coal-Fired Boiler Deposits. Fuel 1992, 71 (2), 131-142.
2. Radhakrishnan, P.; Zakkay, V.; Agnone, A. Alkali and Gas Emissions from PFB Combustion of Lignite. Combustion Sci. Technol. 1986, 50, 271-281.
3. Förster, M. E. C.; Neumann, F.; Telöken, R.; Pavone, D. Druck-kohlenstaubfeuerung: aktueller Fortschritt des kohlebasierten GuD-Prozesses in Richtung Gasturbinenverträglichkeit und Stand des Entwicklungsprojektes. VGB PowerTech 2005, 85 (6), 38-41.
4. Escobar, I.; Müller, M. Alkali Removal at about 1400 °C for the Pressurized Pulverized Coal Combustion Combined Cycle. 2. Sorbents and Sorption Mechanisms. Energy Fuels 2007, 21 (2), 735-743.
5. Gottwald, U.; Monkhouse, P.; Bonn, B. Dependence of alkali emissions in PFB combustion on coal composition. [Fuel] 2001, 80, 1893-1899.
6. Wen, C. S.; Cowell, L. H.; Smit, F. J.; Boyd, J. D.; LeCren, R. T. Coal alkali retention in a slagging combustor. Fuel 1992, 71, 219-224.
7. Willenborg, W.; Müller, M.; Hilpert, K. Alkali removal at about 1400 °C for the pressurized pulverized coal combustion combined cycle. 1. Thermodynamics and concept. Energy Fuels 2006, 20 (6), 2593-2598.
8. Krishnan, G. N.; Wood, B. J.; Brittain, R. D.; Lau, K. H. In Vaporization of Alkali and Trace Metal Impurities in Coal Gasification and Combustion Systems, Schmid, E., Gäng, P., Piltz, T., Dittler, A., Eds.; High Temperature Gas Cleaning; Institut für Mechanische Verfahrenstechnik und Mechanik der Universität Karlsruhe: Karlsruhe, 1996; pp 651-663.
9. Gottwald, U.; Monkhouse, P.; Wulgaris, N.; Bonn, B. In-situ study of the effect of operating conditions and additives on alkali emissions in fluidised bed combustion. Fuel Process. Technol. 2002, 75, 215-226.
10. Jakob, A.; Stucki, S.; Struis, R. P. W. J. Complete heavy metal removal from fly ash by heat treatment: Influence of chlorides on evaporation rates. Environ. Sci. Technol. 1996, 30 (11), 3275-3283.
11. Reichelt, T. Freisetzung gasförmiger Alkaliverbindungen bei atmosphärischer und druckaufgeladener Verbrennung; Fortschritt-Berichte VDI Reihe 3 Nr. 687 Verfahrenstechnik; VDI Verlag: Düsseldorf, 2001.
12. Huggins, F. E.; Shah, N.; Huffman, G. P.; Kolker, A.; Crowley, S.; Palmer, C. A.; Finkelman, R. B. Mode of occurrence of chromium in four US coals. Fuel Process. Technol. 2000, 63, 79-92.
13. Kolker, A.; Huggins, F. E.; Palmer, C. A.; Shah, N.; Crowley, S. S.; Huffman, G. P.; Finkelman, R. B. Mode of occurrence of arsenic in four US coals. Fuel Process. Technol. 2000, 63, 167-178.
14. Wolf, K. J. Untersuchungen zur Freisetzung und Einbindung von Alkalien bei der reduzierenden Druckwirbelschichtverbrennung. Ph.D. Thesis, RWTH, Aachen, 2003.
15. Miller, D. R. Free jet sources. In Atomic and Molecular Beam Methods; Scoles, G., Ed. Oxford University Press: New York, 1988; Vol. 1, pp 14-53.
16. Dayton, D. C.; French, R. J.; Milne, T. A. Direct Observation of Alkali Vapor Release during Biomass Combustion and Gasification. 1. Application of Molecular-Beam Mass-Spectrometry to Switchgrass Combustion. Energy Fuels 1995, 95, 855-865.
17. 2 Reduction during High Alkaline Biomass Combustion. Energy Fuels 2005, 19, 820-824.
18. Müller, M.; Wolf, K. J.; Smeda, A.; Hilpert, K. Release of K, Cl, and S Species during Co-combustion of Coal and Straw. Energy Fuels 2006, 20, 1444-1449.