Fuels and Combustion
Coke oven gas is a better fuel than blast furnace gas, because of its higher

Heat release rate (thus requiring smaller combustion chamber)
Adiabatic flame temperature
All of these
Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)

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

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)
All of these
Controlling the dust nuisance while charging the coal
Prevention of clinker formation in the oven

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