Cost-effective and practical protection methods for carbon steel equipment
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For some smaller chemical plants, if standard equipment is made of carbon steel, the cost of maintaining such equipment during shutdowns for repairs becomes particularly high. If the protection methods used in larger chemical plants are adopted, the costs are too high. A more economical approach is to clean the materials thoroughly, then dry them, replace the air with vacuum, and fill the space with nitrogen! Lasts you ten years!
What is it that you’re introducing here~~ No goal, hey
For example, carbon steel reactors can be maintained using this method
For example, each time a carbon steel reactor is shut down for maintenance, it is purged with steam and then left to rest for a while before being used again. If no maintenance is carried out, a large amount of rust will be found inside the reactor when it is turned back on, and after a few years it will become damaged and unusable. If the reactor is thoroughly cleaned, dried, and then sealed with nitrogen, no excessive rust will appear when it is used again. It also extends the service life.
He was talking about the maintenance of the container during its downtime, which is standard practice. Encourage newcomers to try posting; keep it up!
It is well known that rust prevention for metal sheets involves applying a layer of grease on their surface to prevent electrochemical corrosion that occurs when the sheet comes into contact with air. Therefore, this same approach can be used for protecting containers that are not in use; instead of grease, a vapor-phase corrosion inhibitor is used. After the equipment is shut down, this inhibitor is injected so that it spreads throughout every corner of the equipment, thereby slowing down corrosion.