Chlor-alkali corrosion resistance
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The gas composition is as shown in the table above: H2O2, Cl2, CO2, N2, Ar, H2O; with volume percentages of 82.2%, 5.28%, 0.00%, 20.0%, 0.42%, and 11.2% respectively. Alkali solution is used to absorb the chlorine present, resulting in the formation of sodium chloride, sodium hypochlorite, etc., along with a small amount of chlorine remaining. The secondary process is carried out in a tower with a diameter of 2.5 M; the tower is made of carbon steel. It is now necessary to apply an anti-corrosion coating inside the equipment. Could you please recommend suitable anti-corrosion materials and provide some relevant information? Thank you. . . . . . . . :)
H2 82.28%, O2 5.28% – a hazardous gas composition with an explosion risk.
Personally, I think using steel-lined PTFE is sufficient
Bro, did you mix up the components of hydrogen and chlorine? Otherwise, how could you still post here? I would have blown you up early. . . A PVC-lined version probably won’t work; the internal anti-corrosion strength of a fiberglass-lined tower isn’t sufficient either. It’s better to go with a PTFE-lined option, but such lining is very expensive. Moreover, since this system operates under negative pressure, the lining is likely to peel off. I recommend buying a tower with a fiberglass lining covered in PVC – it’s safer and more reliable
I haven’t gotten the gas composition wrong. . .
Delamination of steel-lined PTFE under negative pressure? ? ? ? Will it?
It depends on the manufacturing process! Bro, I think the one with a steel lining and PTFE is the best choice