Naphtha storage
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1. What is the pressure for the pressure storage tanks that are used in naphtha processing? Pressure storage tanks must be equipped with safety valves. Can these safety valves discharge into a flare? How is the discharge amount calculated?
Why are pressure storage tanks used for naphtha? Which one is it? An internal floating roof should work fine! If you’re worried about volatilization, you can use nitrogen sealing for gasoline recovery
Are pressure storage tanks being used for naphtha now? I don’t think I’ve seen it before
Storage pressure for light naphtha: 0.22 MPa, storage temperature: 40°C. The gas discharged from the spherical tank safety valve is sent to the plant-wide flare header ； When a leak occurs at the bottom of the spherical tank, water is injected into the leaking tank through the tank filling line connected to the fire water supply network. The discharge rate is 144,225 kg/h (for 3000 m3 without insulation); the discharge temperature is 110°C, and the set pressure is 0.4 MPa. The calculated nozzle area is 28,682 mm2, but a nozzle area of 39,760 mm2 was chosen. The relevant standards are API Std 526. Nozzle material 304, inlet diameter 12'', outlet diameter 14''.