Fuels and Combustion
In low temperature carbonisation (as compared to high temperature carbonisation) of coal

Ammonia yield is more
All of these
Aliphatic tar is produced
Free carbon in tar is more

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

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