Fuels and Combustion
Low temperature carbonisation

Produces less quantity of tar than high 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'

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Fuels and Combustion
Fussain

Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal
All of these
Is friable, charcoal like substance
Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation

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