VR be carried over to main tower and heater during coke drum steaming?

Home Forums Coking Technical Heaters & Furnaces VR be carried over to main tower and heater during coke drum steaming?

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      4 drums coker
      Participant

      Is it possible that VR be carried over to main tower and heater during coke drum steaming?
       
      The VR then re-coke in the heater tubes.
       
      The heater skin temperature suddenly increase from 550C to 650C.
      (This is the real situation in our DCU)
       
      Anyone has similar experience?

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