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Fusibility and sintering characteristics of ash

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Power Technology and Engineering Aims and scope

The temperature characteristics of ash fusibility are studied for a wide range of bituminous and brown coals, lignites, and shales with ratios R B/A of their alkaline and acid components between 0.03 and 4. Acritical value of R B/A is found at which the fusion temperatures are minimal. The sintering properties of the ashes are determined by measuring the force required to fracture a cylindrical sample. It is found that the strength of the samples increases sharply at certain temperatures. The alkali metal content of the ashes has a strong effect on their sintering characteristics.

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References

  1. E. Raask, Mineral Impurities in Coal Combustion, Hemisphere Publishing Corporation (1985).

  2. Toby G. Bridgeman, Jenny M. Jones, and Alan Williams, Overview of Solid Fuels, Characteristics and Origin. Handbook of Combustion. Vol. 4. Solid Fuels, Wiley-VCH Verlag GmBH & Co. KgaA (2011).

  3. A. Ots, J. Telkowsky, “Fusion and sintering characterization of coal ashes,” in: Proc. of 11 th Int. Coal Sci. Conf., San-Francisco (2001).

  4. A. Ots, Oil Shale Fuel Combustion, Tallinn (2006).

  5. M. Hupa and B.-J. Skrifvars, “Measuring the sintering tendency of ash by a laboratory method,” J. Inst. Energy, Sept. (1989).

  6. R. R. Attig and D. H. Barnhart, “A laboratory method of evaluating factors affecting tube bank fouling in coal fired boilers,” in: Mechanism of Corrosion by Fuel Impurities, Butterworths, Marchwood, UK (1963).

    Google Scholar 

  7. B.-J. Skrifvars, M. Hupa, and M. Hiltunen, “Sintering of ash during fluidized bed combustion,” Ind. Eng. Chem. Res., 31(4) (1992).

  8. C. Tangsathitkulchai and M. Tangsathitkulchai, “Effect of environment atmosphere on the sintering of thai lignite fly ashes,” in: Applications of Advanced Technology to Ash-Related Problems in Boilers, Plenum Press (1985).

  9. A. Ots, T. Parve, B.-J. Skrifvars, and M. Hupa, “The sintering tendency of ash from calcium-rich oil shale,” J. Inst. Energy, December (1996).

  10. D. Zhang D., P. J. Jackson, and H. B. Vuthaluru, “Low-rank coal and advanced technologies for power generation,” in: Impact of Mineral Impurities in Solid Fuel Combustion, Plenum Publishers – Kluwer Academic (1999).

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Correspondence to A. A. Ots.

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Translated from Élektricheskie Stantsii, No. 10, October 2011, pp. 25 – 30.

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Ots, A.A. Fusibility and sintering characteristics of ash. Power Technol Eng 45, 460–465 (2012). https://doi.org/10.1007/s10749-012-0294-0

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  • DOI: https://doi.org/10.1007/s10749-012-0294-0

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