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  • Users: Nagara
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  1. Nagara

    V/Na corrosion on ss 321 tubes

    Hello...I have a furnace that heats a stream of hydrogen, h2s,and heavy naphta from 320 to 380 °C. The tubes are made of 321 SS. The furnace is prepared to burn fuel oil. However our fuel oil contains now 200 ppm of V and 90 ppm of Na (originally, when the furnace was designed didnt contain V or...
  2. Nagara

    Va/Na corrosion on SS 321 tubes

    Hello...I have a furnace that heats a stream of hydrogen, h2s,and heavy naphta from 320 to 380 °C. The tubes are made of 321 SS. The furnace is prepared to burn fuel oil. However our fuel oil contains now 200 ppm of V and 90 ppm of Na(originally, when the furnace was designed didnt contain V)...
  3. Nagara

    Vanadium effect on stainless steels

    Hello...I have a furnace that heats a stream of hydrogen, h2s,and heavy naphta from 320 to 380 °C. The tubes are made of 321 SS. The furnace is prepared to burn fuel oil. However our fuel oil contains now 200 ppm of V (originally, when the furnace was designed didnt contain V). The question is...
  4. Nagara

    Alkylation acid header

    Hi. I´m the process engineer of an Alkylation HF unit. As many units of this type, we have an acid header, that collects gas streams that may contain HF, and a regular Header. API recommends that a purge gas is provided to minimize stagnant pockets, and corrosive atmosphere in these headers...
  5. Nagara

    olefin in reforming product

    Recently we noticed that our feed-effluent exchanger, prior to our reforming reactors, has a leak. We were told that in order to quantify this leak we could measure naphtenes in the products, as their conversion should be 100% at the severity we are operating. Product PIONA shows that naphtenes...
  6. Nagara

    Noise generation in vent

    Hello to everyone. For process reasons, we have decided to open a pipe to vent excess air to atmosphere. However, in order to do this, they have asked me to calculate the noise that would generate in such discharge. What would be the best way to calculate this? (in order to guarantee that the...
  7. Nagara

    Magnetically coupled agitator

    Dear all, we are looking for manufacturers of magnetically coupled agitors for three phase high pressure reactor. Can anybody help to find manufactures? Regards, N. Garabato

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