Fuels and Combustion
Lignite is

A high rank coal
A black banded coal which burns with a non-smoky yellowish flame
A coking coal
Can be used for gasification and steam generation

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Fuels and Combustion
Low temperature carbonisation

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

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