Is there water in the reflux tank at the top of the catalytic stabilizer? ?
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At present, the reflux tank at the top of the stabilizer in the unit is suffering from severe water carryover; sometimes the liquid level in the water pocket reaches the full scale, and even with the control valve fully open, the water cannot be completely drained. The amounts of C2 and C5 in liquefied gas are negligible. The pressure in the desorption tower is 1.3 MPa, and the bottom temperature is 132 degrees; under such conditions, water should not be present. So, experts, where does the water come from?
There might be leaks in the water cooling at the top of the tower. Analyze the tower pressure; is there any fluctuation in the liquid level?
For the analysis, the base angle is generally controlled at 120 degrees. Check whether there is any difference in the amount of acidic water delivered compared to before
There’s a problem with the water cooling system at the top of the tower, right?
Under normal circumstances, the pressure of the water cooling fluid is only 0.4 Mpa! How does it leak into liquefied gas? Most of the water in stable systems is introduced from earlier processes, so you can check whether all water levels are normal!
Inject rich gas in large quantities? Liquefied gas contains dissolved water
It’s impossible to dissolve that much water; what is the steam pressure in the desorption tower? Is it leaking in from the desorption tower reboiler?
Do you have a system for reprocessing light contaminated oil? Sometimes, the poor quality of such oil can lead to inadequate separation of water from oil in the crude gasoline tank, which in turn affects the separation process at the stabilization unit. If this separation is not proper, it can result in water and oil ending up in the reflux tank at the top of the stabilizer. We have encountered this situation before – where oil and water fail to separate properly