What causes the increase in distillation column pressure drop?
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This post was last edited by Green Lotus on 2018-4-18 21:51. What causes an increase in the pressure drop in a distillation column?
That device’s? Please explain clearly so that the problem can be resolved.
1. The liquid level at the bottom of the tower is too high; in the worst case, this can cause blockage of the oil-gas line. 2. The liquid load returning to the tower is too high. 3. The processing capacity is too high; actually, points 2 and 3 are related to each other!
“What causes the increase in distillation column pressure drop? ”What is rising voltage drop? Thank you!
Clarify what devices, what towers, what mesons
An increase in the pressure difference between the top and bottom of the tower means an upward rise.
One possibility is salt formation; the other is a low processing load and insufficient heat source at the upper part
This should be called resistance, right? It refers to the resistance encountered by the rising gas as it moves from the bottom of the tower to the top, isn’t that it? The solution is to create a new operating condition; if that doesn’t work, then the machine needs to be stopped.
Excessive load, large amount of cold return flow, with water present.
If it is due to the catalytic fractionation tower, the reasons are as follows: 1. Salt accumulation in the upper middle part of the fractionation tower, with some trays, extraction ports, and downcomers becoming blocked by salt and requiring washing; 2. Insufficient amount of diesel being extracted, resulting in an excess of diesel components remaining in the tower, so it is necessary to increase the amount of diesel extracted; 3. Excessive load on the tower top, such as too high a flow rate of cold return fluid or too high a top circulation volume, which requires reducing the load on the tower top