Coking time in a commercial high temperature coal carbonisation plant is about ______________ hours?
Correct answer: B. 18
- A. 6
- B. 18
- C. 28
- D. 36
Explanation
High-temperature coke ovens typically require roughly 16 to 20 hours for carbonisation, making 18 hours the closest standard value. The exact time varies with coal type, oven design, and operating temperature.
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