Ash fusion temperatures and the transformations of coal ash particles to slag Article

Gupta, S, Wall, TF, Creelman, RA et al. (1996). Ash fusion temperatures and the transformations of coal ash particles to slag . 41(2), 647-649.

cited authors

  • Gupta, S; Wall, TF; Creelman, RA; Gupta, R

authors

abstract

  • A mechanistic study is detailed in which coal ash is heated with its shrinkage measured continuously up to a temperature of 1600°C. The temperatures corresponding to the rapid rate of shrinkage are shown to correspond to the formation of eutectics identified on phase diagrams. Samples were therefore heated to these temperatures, cooled rapidly and examined with an SEM to identify the associated chemical and physical changes. The progressive changes in the range of chemical analysis (from SEM), the extent of undissolved ash particles and porosity were then quantified and related to homogenisation, viscosity and ash fusion mechanisms.

publication date

  • December 1, 1996

start page

  • 647

end page

  • 649

volume

  • 41

issue

  • 2