Refining Community Logo

Wash Oil Flow Quantuty

Home Forums Coking Technical Fractionation & Process Process Wash Oil Flow Quantuty

This topic contains 2 replies, has 3 voices, and was last updated by  antonio saura Cebrian 11 years, 2 months ago.

  • Author
    Posts
  • #2313

    Freddy Martinez
    Participant

    My Plant had some trouble related CHGO CCR wt%
    I had shut down plant & find problem.
    that reason is fouling of #1~4 Tray
    I think wash oil is so little, that make dry tray & fouling.
    so I have to decide How much wash oil is reasonable.
    Is there any criteria or calculation tool ? It there are that tools or criteria, would you let me know.

  • #5149

    coker fractionator with tray in the wash zone and P1 tray below wash section, bring this problem (old design) this area should always keep a lower temperature to 730 F; loss of flow or low flow in this section like you say are going to coke up from the wash zone to the shed tray section, a rule can be maintain a minimum flow of 3 to 4 gpm per inch of weir

    the other method is that you can simulate this section (program simulation) and calculate the flow such that at least 30% of the flow remains liquid (leaving the plate P1), because once that tray are dry and again to get wet again the HCGO vaporizes and begins to coke up

    Best Regrads

  • #5145

    Claus Graf
    Participant

    You might find this article helpful:
     
    http://www.fwc.com/publications/tech_papers/files/HP09%20OptimizeCokerOps.pdf
     
    Regards
     
    CG

You must be logged in to reply to this topic.

Refining Community