Blast furnace coke is made from coal by_____________________?
Correct answer: B. High temperature carbonisation
- A. Low temperature carbonisation
- B. High temperature carbonisation
- C. Medium temperature carbonisation
- D. Heating the coal in an oven in presence of air
Explanation
Blast-furnace coke is produced by high-temperature carbonisation of coal, usually around 900–1200°C in the absence of air. This produces a strong, porous coke suitable for supporting the furnace burden.
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