Urgently request additional measures to control the high level of 100,000 tons of gasoline
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This post was last edited by Refiner on 2018-7-27 07:36. Urgent request: The dry point of 100,000 tons of gasoline cannot be controlled; the intermediate circulation volume is 22 tons and the top circulation volume is also 22 tons. The high pressure at the top causes the entire top circulation stream to become water. The current top temperature is 105, the cold reflux rate is 300, and the pressure in the distillation tower is 95. I seek advice from all experts here
Are you just starting to drive? How did this problem arise, and how long has it existed?
What is used as a terminator? What is the extraction temperature at the top loop? Has there been any change in the distillation column pressure drop?
Check the reaction depth to see if there are any minor carbon deposits; otherwise, adjust the oil addition ratio
It can’t be pressed down; are the other quality parameters satisfactory? What is the slurry circulation rate?
The steam injection volume is too high or the feed contains water, which results in a low vapor pressure at the top of the distillation tower and a high dry point; reduce the steam injection volume
Reduce the amount in the middle section slightly, raise the temperature of the liquid drawn by the top circulation pump first, and reduce the amount of cold reflux. Once the top circulation pump is no longer drawing vacuum, that’s fine; the key is to increase the temperature of the liquid drawn by the top circulation pump
The top temperature and pressure are too low, causing water vapor from the tower top to enter the top circulation system; we ensure that the temperature of the fluid returning to the tower through this circulation system remains at least 84 degrees.