Fuels and Combustion
Sometimes water is sprayed during coal charging in the coke oven, which helps in

Controlling the dust nuisance while charging the coal
All of these
Prevention of clinker formation in the oven
Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂)

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Fuels and Combustion
A good metallurgical coke

Should have low fusion point of its ash
Should have high porosity
Should be brittle
Must contain moderate quantities of ash, moisture, sulphur and volatile matters

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Fuels and Combustion
Anthracite coal

Burns with short, bluish, yellow-tipped flame producing very little smoke
Ignites more easily than bituminous coal
Contains more volatile matter than bituminous coal
Is essentially a coking coal

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