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CatCracking – Achieving Low SOx emissions

Home Forums Conferences 2011 Texas CatCracking – Achieving Low SOx emissions

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    Mrityunjay Singh
    Participant

    Achieving Low SOx Emissions
    Jeff Oberlin, Facilitator INTERCAT

    • Consider wet gas scrubber operations at a different pH level — Adjust acid level
    • Water quality to scrubber
    • Know the quality & specs of water used
      – Look at calcium limits
      – Fresh water is preferred over sour water
    • What possibilities are there to re-vamp the scrubber
      – Larger taller scrubbers may be necessary
      – Look at Low tox retrofit
    • Consider utilizing any feed handles available
    • Consider utilizing any feed handles available
    • Look at caustic addition limits going to the scrubber
    • Look at purge rates
      – Keep sediment levels at 0.4 max
    • Consider utilizing a SOx reduction additive to reduce SOx to the scrubber during unusual times
      – High caustic price for more economical operation
      – To unload scrubber demand as needed to meet limits

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