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  • Users: brochon
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  1. brochon

    VGO TAN

    Is a high TAN VGO detrimental to hydrocracker metallurgy? If so, what TAN spec or metallurgy are commonly used? Thx Brian
  2. brochon

    DHT HPS Cement Liner

    Does anyone know the reason for the cement liner in the DHT High Pressure Separator? Is it for corrosion protection or is it for internal insulation to reduce PSV sizing for the fire case? Thx Brian
  3. brochon

    Drill Hole in Pump Check Valves

    I would like to survey you folks to see: How common is the practise of drilling holes in pump check valves (e.g. to act as warm up line on a spare pump)? I have had this discussion many times in house and there are good arguments for and against. I would like to know just how common is the...
  4. brochon

    H2S in #6 Oil

    Has anyone been experiencing high H2S in the vapour space above their #6 oil product? What do you do to mitigate? We are currently treating with H2S scavenger, which is very expensive. Would like to hear from others...What seems to be the best industry practise? Thx Brian
  5. brochon

    Welcome Tips for Sizing a Pump MiniFlow Line?

    Can anyone please help in sizing/specifying a pump mini flow line? The pump is in service, I have the pump spec sheets, know the pump normal operating conditions and have the vendor's recommended continuous minimum flow. Full capacity is required at times, therefore a control valve is desired...
  6. brochon

    # 6 Oil Viscosity Cutting vs Flash

    To control our # 6 oil viscosity, we can cut with the following cutterstocks, crude unit diesel flash ~ 180 °F merox kerosene flash ~ 160 °F distillate hydrotreater diesel flash ~ 180 °F visbreaker gas oil flash ~ 190 °F At times, usually when...
  7. brochon

    Pump Mini Flow ?

    Can anyone help me determine pump mini flow requirements. I would like to verify the pump vendors recommendation of 60% of rated flow. The pump manufacture is basing this not only on protection the pump under closed discharge conditions but also for radial & axial thrust affecting mechanical...

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