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  1. KrugerJR

    Definition of 95%VRS

    Where can I find a definition for "VRS with 95% reduction", as it is refered to in AP42. Does it refer to a vapour condensing system, or a wash column, or a flare system or all of the above mentioned? Please help?
  2. KrugerJR

    Storage tank design trends

    I am working for a company that is operating in the petrochemicals and chemicals environment. I am responsible for specifying storage tanks (AST’s i.e API 620) for new plants. These tanks are typically between 10m and 30m in diameter. Also, some shop fabricated tanks. I am currently...
  3. KrugerJR

    Pressure storage tank vent losses

    IFRs, I agree with you that using nitrogen in stead of air as a blanket will not have a significant influence on the emission rate, but in the case of a product with a relatively high vapour pressure, I believe that Ratio of Nitrogen to product vapours in the vapour space should become bigger if...
  4. KrugerJR

    Pressure storage tank vent losses

    I am looking for a calculation method or procedure to determine product losses from a pressurised chemical storage tank (with or with-out an internal floating roof). Also, does any-one have guidelines on when to add a nitrogen blanket on top of an IFR and how to determine a suitable pressure for...

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