Equipment Corrosion Solution
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It was found that pitting had occurred in multiple areas on the inner wall of the coke filter. I would like to ask everyone what causes this phenomenon and how it can be prevented
First, test the flowing substance to identify the corrosive agent, and then take action accordingly
It is necessary to understand the composition, temperature, and pressure of the overflowing materials. The type of corrosion that has occurred is being addressed accordingly.
Oxygen: 0.3%, CO2: 2%, CO: 35%, H2: 36%, CH4: 2.3%, N2: 4.3%, trace amounts of Cl ions; temperature around 35, pressure 2.2 Mpa
This post was last edited by li*nji on 2015-10-13 at 14:18. Pitting caused by low concentrations of chloride ions: when the Cr content in stainless steel is above 25%, its resistance to pitting is good; the presence of Mo and N can also significantly improve this resistance. Choose the material based on these criteria
My equipment is made of Q345R material, and I can’t replace it for now. Are there any good preventive measures?
Spray tetrafluoro, powder coating, spray corrosion-resistant resin.
Spray tetrafluoro, powder coating, spray corrosion-resistant resin. Thank you for the guidance: Can I use a fiberglass coating?