Selection of stainless steel sheets regarding temperature resistance, chloride ion resistance, and sulfate ion resistance
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Seeking help from experts:: Reaction vessel (outer layer made of thick carbon steel plate, inner lining of 4mm stainless steel plate): Operating temperature: 250°C; Operating pressure: 50 bar. Reaction medium: a mixture of fatty acids (organic acids), water, and vegetable oils. The reaction medium contains trace amounts of sulfate ions and chloride ions. Need help selecting the appropriate 4mm stainless steel sheet material. Additionally, suppliers that produce materials for this purpose can contact me.
Double-sided enamel reaction vessels can be used directly; compared to stainless steel, enamel is more resistant to corrosion and high temperatures, and no lining is required
My reactor is a column with a diameter of 2000 mm and a height of 55 mm; how should double-sided enamel sheets be used? Could you send me more materials?
Stainless steel won’t work; chloride ions will cause corrosion, so a PTFE coating will do.
What about duplex steel? Is there anyone who suggests something?
A composite plate of carbon steel + 2205 can also be used. We have made such devices before
Are you sure? Take a look at the temperature and pressure here. It has long exceeded the scope of application for ordinary chemical industry enamels.
I agree with you; there’s no guarantee when it comes to enamel at 250 degrees!