Preheating of coal charge for the coke ovens reduces the __________________?
Correct answer: A. All A., B. and C.
- A. All A., B. and C.
- B. Yield of gas and tar
- C. Fuel consumption in coking
- D. Time of carbonisation
Explanation
Preheating removes moisture and raises the initial temperature of the charge, so carbonisation takes less time and requires less firing fuel. It can also reduce the recovery of gas and tar by driving off some volatile matter before or during charging.
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