Question

Prime coking coal is always blended with medium or non- coking coal before ear-bonisation

a.

to check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls.

b.

because, it alone produces unreactive coke.

c.

both (a) and (b).

d.

neither (a) nor (b).

Posted under Fuels and Combustion Basic Chemical Engineering

Answer: (c).both (a) and (b).

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Q. Prime coking coal is always blended with medium or non- coking coal before ear-bonisation
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