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

Table 12

XRD analysis of BD-4A ash.

Temp. (°C)	Compound name	Chemical formula	SemiQuant (%)
550	Quartz high	O2Si1	70
	Aluminum sulfate	Al2(SO4)3	30
600	Quartz	O2Si1	78
	Potassium iron (III) oxide	Fe1K1O2	2
	Calcium sulfate	Ca(SO4)	20