Correlating The Slagging of A Utility Boiler With Coal …
Slagging Index, Rs = dry S% x B/A If a portion of the sulfur in coal exists as pyrite it can be seen that the slagging index is doubling the impact of iron by including both sulfur and iron oxide in the numerator. All of the coals in this study rate low slagging potential by having a slagging index less than 0.6.
