Current operating status of the distillation tower
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This post was last edited by Refiner on 2018-8-23 at 14:15. The liquid level in the distillation tower is high; the boiling temperature of diesel varies greatly. The diesel level is low, while there is more gasoline. The top temperature is 100, and the dry point is on the high side. The flash point of diesel is within acceptable limits. Is this phenomenon caused by salt formation, or what else could be the reason?
There are a few too few parameters for determining salt formation.
How to determine salt deposition in a distillation tower
The overall pressure drop across the distillation column fluctuates greatly, and the quality of the products in each section varies significantly! The top reflux can easily get emptied! There are many relevant posts on the forum; you can search to see how others make judgments and take actions!
What is the pressure drop at the bottom of the tower? High pressure drop may lead to salt formation
Give it a try by washing it; it won’t have much of an impact. The parameters will become clear soon, and the situation will be rather passive, isn’t it?
Too few parameters! The image is unclear! All key parameters! And I’ll share the raw materials too!
It’s probably because the heat load taken from the bottom of the tower is too high! The value at one and the top is small! Redo the overall tower thermal balance
Based on the moderator’s description, it can be inferred that the gas-liquid phase equilibrium in the middle and lower sections of the distillation column has been disrupted, though to a mild extent. Make some adjustments, and establish gas-liquid phase equilibrium.
Obvious salt formation in the upper middle part of the distillation column. The temperature of the top recirculation tower should be increased