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Air separation

2020-12-15View Original

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Are there any colleagues who work in the air separation industry? Explain the processes for loading molecular sieves, both horizontal and vertical types, as well as the purifier process
Reply #22020-12-15
I wonder if some retired colleagues could help with this :) 1. First, cut off the source of supply, reduce the discharge load, remove the manway flange, check whether there is any leakage from the molecular sieve. Use a fan to blow air into the tank for ventilation, and after sampling and confirming that the oxygen level is within acceptable limits, open the discharge port flange and proceed with cleaning the discharge area. 2. The purification gas process involves adsorbing moisture and carbon dioxide; the adsorption time is determined based on the adsorption capacity of the molecular sieve. The system operates in parallel, is switched off, pressure is released, and the adsorbed moisture and carbon dioxide are removed by using recycled dry gas for regeneration. After that, cooling air is used, pressure is restored, and the system operates in parallel again, with switching taking place as necessary.... It’s all set according to the adsorbent’s capacity. Note: 1. Before entering the pipe, a “Confined Space Work Permit” must be obtained, and a dedicated supervisor should be assigned. If there is pressure before the inlet valve for the purified gas, a blind flange must also be installed to prevent accidental operation of the valve and resulting accidents. 2. The storage of related scaffolding and waste materials is also related to environmental protection issues. 3. Before loading, make sure the screen has no leaks; otherwise, it is best to add an additional layer of screening mesh. 4. The surface should be smooth after loading. 5. After sealing the tank, perform flange pressure testing to ensure there are no leaks. 6. After regeneration to meet the standards, it can be put into use. For reference.
Reply #32020-12-15
Thank you so much, senior! ! ! :Is it convenient to use handshake to inform WeChat? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Reply #42020-12-16
If it’s a technical role, it’s fine; but if it involves sales, it will disappoint you – I don’t have the resources :)

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