The high liquid level in the reflux tank at the top of the fractionation tower is the cause of overfilling in the coke tower

2017-03-24 View Original

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Reasons for tower flooding in coke ovens. . . . There are two items in the Q&A on delayed coking technology: The liquid level in the oil-water separation tank at the top of the fractionation tower is too high ； The reflux flow at the top of the distillation tower is high. I don’t understand; please give me some guidance

Reply #2 2017-03-25

The oil-water separation is not effective; water is carried back with the reflux stream, and the amount of reflux is high, resulting in a low temperature at the top of the tower. Light oil and water flow toward the higher-temperature section at the bottom of the tower, where boiling occurs abruptly and causes flooding of the tower.

Reply #3 2017-03-31

**Could you tell me what’s going on?

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The high liquid level in the reflux tank at the top of the fractionation tower is the cause of overfilling in the coke tower

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