How to return MTBE；
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The device is out of service for an extended period; how to ensure the safe and clean removal of materials, as well as the relevant operational precautions； Please ask CNOOC to respond promptly!
Just use the normal procedure to exit. Let me mention a few things to keep in mind. 1. If the catalyst is not replaced, the reactor cannot be steamed ； 2. When emptying the methanol washing tower, N2 should be introduced to maintain positive pressure and prevent the equipment from collapsing. 3. When pouring material from the reactor into the reaction tower, be careful not to cause overpressure ； 4. Empty the underground tank in advance ； 5. Stop the operation of the methanol recovery unit after completing the methanol recovery, and then shut it down.