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Egbert van Hoorn

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  • in reply to: Direct Steam Injection to Strippers #5567

    Egbert van Hoorn
    Participant

    Direct steam injection for SWS is typically historic. It was a cheap way to build strippers.
    A reboiler is current state of the art.
    Advantage of a reboiler:
    Less process water (10-20%)
    More capacity
    recovery of valuable condensate which is otherwise downgraded to effluent water.

    disadvantage of a reboiler:
    fouling.
    reagrds

  • in reply to: Quench water coolers- Best Practices/Recommendations? #5568

    Egbert van Hoorn
    Participant

    I would agree that this should be considered as fouling service although it is not that obvious.
    It is possible that operation on a too low pH or other non-optimal process conditions of the TGTU cause corrosion of the quench tower and subsequent fouling of the heat exchangers.
    How stable is the operation of the TGTU?
    regards

  • in reply to: Sodium concentration limits in Amine #5569

    Egbert van Hoorn
    Participant

    Yes,
    There is a limit for the sodium content. It is basically the maximum solubility of Sodium in amine solutions.
    It is somewhere between 1 and 2 %.
    The possibilities of Sodium entrainment from an amine unit are rather small. The amine itself (containing the sodium) can be entrained.
    regards
    Egbert van Hoorn

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