What are the signs of oil in amine solution, and how can the oil be removed from it?
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This post was last edited by adsl121 on 2010-6-20 06:05. What are the signs of oil in amine solution, and how can the oil in amine solution be removed?
This post was last edited by adsl121 on 2010-6-20 06:05; it seems that the liquid separation before hydrogen sulfide removal in the refined system’s dry gas is not proper. Our equipment has also experienced oil leakage. We opened the manhole on top of the amine tank and used siphoning to draw it out slowly. (The amine solution is heavier than the oil, so separation occurs). We extracted a lot of oil at that time.
This post was last edited by adsl121 on 2010-6-20 06:05. Oil in the amine solution affects the proper operation of the amine regeneration and sulfur recovery units; therefore, it must be avoided as much as possible. Once oil appears in the amine solution, it is advisable to install an oil skimming port in the amine-depleted tank. If oil is detected in the amine solution, it can be removed through this oil skimming port.
This post was last edited by adsl121 on 2010-6-20 06:05. There is a partition in the rich liquid flash tank, located at 80% of the liquid level, which divides the tank into two chambers. When the liquid level rises to that position, the oil flows into the other chamber, which is connected to the sludge tank so that the oil can be discharged from there! ! ! You all must have them; make good use of them! !
Our device has experienced the same issue these past two days as well! However, our flash tank doesn’t have the partition mentioned upstairs! Currently, the amine liquid tank is being filled with oil》》》》》
You can check the equipment drawings; there should be partitions there. The percentage level is determined based on the height of these partitions. Our design specifies 70% as the target level. When collecting the oil, make sure to observe whether it is oil or amine solution by checking the drain outlet. Discharging amine solution into the sludge oil tank is prohibited
We also have an oil separation tank; generally, oil discharge is carried out as mentioned in Building 4#, but the oil discharge process is somewhat difficult. It is recommended to install a valve on the pipeline coming out of the tank that leads to the acidic gas liquid removal tank; if it is determined that the liquid in the tank is an amine solution, it can be discharged into the acidic gas liquid removal tank, and then the flow can be directed to the oil drainage system once it reaches the oil layer. I’m not sure if it’s possible; let’s discuss it.