Temperature of coke oven gas just before entering into saturator (for recovery of NH3) is about ______________ °C?
Correct answer: B. 65
- A. 30
- B. 65
- C. 120
- D. 180
Explanation
Coke-oven gas is cooled to roughly 65°C before entering the saturator, where ammonia is absorbed in water or acid liquor for recovery. At much higher temperatures, ammonia absorption becomes less effective.
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