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  • Users: dhdsvr
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  1. dhdsvr

    Effect of methanol in crude

    Request to provide information on the effects of presence of methanol in crude. Has any refinery processed crudes having high methanol content ? What are the experiences ?
  2. dhdsvr

    Hydraulic pressure recovery turbines in Refineries

    Request to provide experiences of using HPRT in refineries (DHDS, Hydrotreaters, Hydrocrackers etc).
  3. dhdsvr

    HPRT

    Request to provide experiences of using hydraulic pressure recovery turbines in refineries. Vendors/suppliers/designers of HPRT is also required. Thank you
  4. dhdsvr

    Atmos column relief valves

    Is anybody awaare of installing rupture disc at the upstream of crude distillation column relief valve inlet line, to prevent corrosion of the relief valve internals. If yes, what is the metallurgy and set pressure selected
  5. dhdsvr

    Mercury in crude

    1. What is the limit normally allowed for mercury in crude ? 2. What are the harmful effects ? (Pl give references) 3. Is there any treatment to remove mercury ? 4. Apart from LPG and naphtha will mercury be found in any other products after refining ? 5. What are the mercury limits being...
  6. dhdsvr

    Metallurgy for Nitric acid

    Can anyone please tell me what is the mettallurgy of a container for Nitric acid ? The nitric acid is to be kept in a tank with heating coil (for heating upto 80 deg C) for cleaning of diesel filter elements.
  7. dhdsvr

    Online relief valve pop tests

    Is online relief valve pop test taken up in process gas boilers/steam generators, like Hydrogen plant naphtha-reformer steam gen or sulfur condensers ? Some inspectors are insisting on this (inpectors are with mechanical background)

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