Fuels and Combustion
Combustion of pulverised fuel

Suppresses the discharge of fine dust and grit into atmosphere
All of these
Requires larger combustion chamber than rich gaseous fuel
In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel

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Fuels and Combustion
Cannel coal

Has a high volatile matter content and burns with a luminous smoky flame
Is non-coking
Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named
All of these

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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
Prevention of clinker formation in the oven
All of these
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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