Fuels and Combustion
Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

Calorific value
Sulphur content
Higher C/H ratio
Difference in gross & net calorific value

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Fuels and Combustion
Low temperature carbonisation

Produces higher quantity of gas than high temperature carbonisation
Is mainly for producing the smokeless domestic coke
Is meant for the production of 'metallurgical coke'
Produces less quantity of tar than high temperature carbonisation

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