The ammonia content before the tower in coke oven gas is low, at less than 2 g/m3. What could be the reason?
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The ammonia content before the tower in coke oven gas is low, at less than 2 g/m3, which is insufficient to meet the requirements for desulfurization.
Is your desulfurization done after the cold drum? Is there a pre-cooling tower in front of the desulfurization tower? What is the gas temperature?
Desulfurization takes place after the cold drum, with a pre-cooling tower; the temperature of the gas after the pre-cooling tower is 30°C.