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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 10 years, 10 months ago.

  • Author
  • #2141

    Freddy Martinez

    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


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

  • #4934

    Claus Graf

    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).

  • #4932


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

  • #4769


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

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