Research Article

Ash Evaluation of Indonesian Coal Blending for Pulverized Coal-Fired Boilers

Table 13

XRD analysis of BD-4B ash.

Temp. (°C)Compound nameChemical formulaSemiQuant (%)

550Quartz lowO2Si175
Sulfur oxideSO26
Calcium sulfateCa(SO4)19

600Quartz lowO2Si167
AnhydriteCa1O4S133