Water in the feed to the absorption tower
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What are the consequences of water in the crude gasoline in a catalytic absorption tower?
Affecting the operation of the reaction and absorption stabilization systems
Is the crude gasoline in the absorption tower containing water? Is it caused by a malfunction in the level sensor of the fractionated oil and gas separator? Just strengthen the dehydration; otherwise, it may cause fluctuations in the pressure and temperature of the stabilizer tower, affecting product quality
Thank you! The fact that gasoline is not recycled should have no impact on the reaction; it does affect the operation of absorption stabilization. So what impact does it have specifically on the absorption tower?
Well, thank you. The dehydration in the reflux tank isn’t proper; water-contaminated crude gasoline enters the absorption tower. What impact does this have on the absorption tower?
The water contained in the crude gasoline then enters the separation tank from the bottom of the tower; this has little impact. After dehydration in the separation tank, the oil proceeds to the stripping tower, as long as the oil entering the stripping tower is free of water
It mainly affects the flow rate and current of the circulation pump in the middle section of the absorption tower as well as the pump at the bottom of the absorption tower; the pressure drop in the absorption tower increases. If the water separation unit in the oil-gas separator at the compressor outlet does not carry out separation in a timely manner, water can be introduced into the stabilization system.
Well, that’s the case; it’s still done this way nowadays, out of concern that it might affect the absorption tower
Thank you. The dehydration in the tank at the outlet of the compressor is fine for now; it hasn’t reached the downstream section, so there’s little impact on the absorption tower
Increase the load on the absorption tower and the various towers used for absorption and stabilization. Increase the amount of water that can absorb and stabilize acidity. Stable operations that affect absorption stability have an impact on product quality.
Water in the crude gas oil can cause emulsification of this oil, which affects the absorption efficiency of the absorption tower. However, if the load on the absorption tower is sufficient, proper control of the level in the condensate oil tank can prevent water from entering subsequent systems, so production can be maintained with no major issues.