Internal leakage in the regenerative reboiler
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The regenerative reboiler in our workshop is leaking again. What is the exact cause of this internal leakage? Is it mainly due to corrosion? How can its lifespan be extended through proper operations?
Leaks in the reboiler are caused, firstly, by corrosion, secondly, by poor manufacturing quality, and thirdly, by improper installation； Fourth, overheating and overpressure may have occurred during operation.
Generally, it is caused by corrosive materials
Do you mean the reboiler for amine regeneration? The cause of corrosion is mostly the presence of excessive heat-stable salts in the amine solution. It is best to install an amine solution purification system to remove the thermally stable salts from the system.
Reply to 4# Clauspolunit :victory: Yes, it’s the amine regeneration reboiler. Thank you. Apart from corrosion, this is probably the reason.
In the past, we’ve had multiple instances of reboiler leaks; the main cause is corrosion. On the one hand, the material of the tube bundle was replaced with aluminum-impregnated material, and on the other hand, an amine liquid purification system was installed; as a result, the situation has improved significantly.
In my opinion, if it’s a slow leakage, then it’s caused by corrosion; the best solution is to upgrade the material
How long can 304 last!
Another reason is that heat-siphon reboilers are more prone to corrosion compared to axe-type reboilers.