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Question

  • I am in Hydrotreater, I want to know how much stripping steam is required in stripper, during startup we use excess steam in stripper to achieve diesel doctor test negative, is it beneficial or adversely affect steam stripping?

    Aug-2022

Answers


  • Jake Gotham, InSite Technical Services, jake.gotham@insitetechnical.com

    Stripping steam is usually around 5-15 lb steam per bbl of bottom product (15-45 kg/m³).  During start-up, while the stripper tower might not be at normal operating temperature, high stripping steam flow can compensate to some extent, but there are diminishing returns at very high steam rates.  Too much steam, particularly if the tower isn’t up to normal temperature, can cause condensation of water within the tower leading to unstable operation, fouling and corrosion.

    Nov-2022



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