Is it necessary to use composite steel plate for this device?
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The medium is water, carbon dioxide, hydrogen sulfide, phenol, and ammonia. The operating temperature is 160°C, the operating pressure is 0.65 MPag, the design temperature is 270°C, and the design pressure is 0.83 MPag. What would be the approximate wall thickness of the tower based on these parameters? Is it necessary to use a composite steel plate made of carbon steel and stainless steel? When designing pressure vessels and tower equipment, under what circumstances should composite steel plates be considered for use?
You can take a look at the related discussions in this post on wet hydrogen sulfide equipment: http://bbs.hcbbs.com/thread-976769-1-1.html (Source: Haichuan Chemical Industry Forum)
It is necessary; CO2 and H2S are highly acidic in aqueous environments and possess strong corrosive properties. It is recommended to use materials of grade 32168 or higher!