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High CCR due to plugging of spraying wash

Home Forums Coking High CCR due to plugging of spraying wash

This topic contains 4 replies, has 2 voices, and was last updated by  Anonymous 8 years, 10 months ago.

  • Author
    Posts
  • #2141

    Freddy Martinez
    Participant

    I have a problem in my coker unit that spray nozzles in tower above the quenched coke drum effluent found always plugged, so the carbon residue of HCGO is always high and out of target
    I need any solution for this problem or any alternate.   thank u

  • #4937

    Anonymous

    If you have drum overhead quenching, increase the quench rate.

  • #4934

    Claus Graf
    Participant

    This system should have a medium pressure steam supply downstream of the control valve.
     
    In case of a loss of wash oil flow, the medium pressure steam will clear the HKGO in the header and prevent it from coking. (It doesn’t take long to plug the washoil spray header).
     
    Regards
     
    CG

  • #4932

    Anonymous

    Thank u very much, i will see MPS idea and its effect on fractionator pressure and other unit conditions.

  • #4769

    Anonymous

    what about increse the spray nozzels size ? or even inject HGO instead of HHGO and see

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