Characterization of Some Nigerian Coals for Power Generation

Table 9

Ash and sulphur classification of the five coal samples.

Classification	Composition range a.r. (%)	Coal samples (heating value, Btu/lb)
		Odagbo	Owukpa	Ezimo	Amansiodo	Inyi
Ash content
High ash	>15.0			✓		✓
Medium ash	8.0–15.0				✓
Low ash	<8.0	✓	✓
Sulphur content
High sulphur	>3.0
Medium sulphur	1.0–3.0	✓
Low sulphur	<1.0		✓	✓	✓	✓