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    Sour water stripping

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    Efficient sulfur and ammonia removal through sour water stripping

    Sour water derived from stripping column overhead accumulators and water washing operations contain impurities most notably sulfur compounds and ammonia which must be removed before the water can be reused in the refinery for desalting or is discharged to waste water treatment facilities.

    The sour water stripping process uses a gas stream to force both hydrogen sulfide and ammonia out of the solution and into the gas phase. The off-gas from the sour water stripper is sent to a conventional sulfur recovery unit or to a wet gas sulfuric acid unit (WSA) for further treatment.

    Process licensing for off-gass processing

    Revamping hydroprocessing units

    Revamping hydroprocessing units

    There are many good business reasons for considering revamping a hydroprocessing unit. We provide support throughout all phases of the project.

    Applications within this area

    Amine regeneration

    H2S in refinery recycle and off-gasses is removed from the process by absorption in amine absorbers. Sour refinery off-gasses contain large amounts of H2S.

    Claus tail gas treatment

    Topsoe offers a range of tail gas treatment catalysts that allow you to reach sulfur recoveries of 99.9% and comply with today's tight regulations.

    Fuel gas hydrotreating

    Topsoe's customized catalytic solution to clean up refinery fuel gas is the only offering of its kind and is commercially proven to improve refinery operations.

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    Do you have a question about our products or solutions? Or do you want to know how our technologies can support your business? Contact our experts today.