Hello. I have an oili water separation recipient, operatign at 20 psig, design pressure 125 psig. It receives oily water from two different gas plants, and sent it to treatment.
The vessel has blanketing with fuel gas.
Both plants have different flare systems. The bigger one (Plant A) receives the connections from the vessel PSVs, flare conexions from the vessel, etc.
Ther is a work to be done in Plant A which will lead to the need of plant shut down and inerting of low P flare header. The blanketing connection comes from this header. There is a valve that allows to isolate the blanketing connection to the vessel, so there is no need of inerting it. But the blanketing connection is loss. Only the PSVs can continue working, cause they go to the High P lare header. Ther is also one PCV on the vessel which also send gas to the High P flare header.
My question is: can I have plant B in operation? Production water is sent to this oily water separator, which does not have now a blanketing connection.
Note: blanketing is done with fuel gas because is important that water remains without oxigen.
Thanks
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Loss Of Blanketing
Started by Butterfly, Jun 01 2012 04:16 AM
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