Fuels and Combustion
Lignite is

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

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Fuels and Combustion
Presence of free moisture in coal during its high temperature carbonisation

Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls
None of these
Increases the loss of fine coal dust from the ovens when charging
Reduces the coking time

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