Thermal Coal


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Heating Value (Gross) 20-30 MJ/kg
Ash Content 5-25%
Sulfur Content 0.5-5%
Moisture Content 5-15%
Volatile Matter 20-40%
Fixed Carbon 40-70%
Size 0-50 mm (typical)
Specific Gravity 1.2-1.4
Hardgrove Grindability Index 30-100 (HGI)
Carbon Content 60-90%
Oxygen Content 5-10%
Nitrogen Content 1-2%
Phosphorus Content <0.1%
Calorific Value 5000-7000 kcal/kg (typical)
Density 1.1-1.5 g/cm³
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