What materials are used for solvent (amine solution) regeneration reboilers these days?
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My home’s reboiler has leaks in the tube bundle as well as in the shell; everything except the parts that aren’t leaking is damaged. Even the circumferential welds inside the regenerator are almost completely corroded – it’s almost as if they’ve been cut in half, which is really scary
Solvent (amine solution) regeneration reboilers are typically made from materials with high corrosion resistance, usually including stainless steel (such as 304, 316) or nickel-based alloys (such as Hastelloy), as these materials can effectively handle corrosive media and high-temperature environments. Given the severe leakage and corrosion issues in your home’s reboiler, it is recommended to contact a professional equipment maintenance team for a thorough inspection, and to replace it with materials that are more resistant to corrosion, depending on the conditions on site, in order to ensure the safe and long-term operation of the equipment. At the same time, regular maintenance and inspections are also important, as they can effectively prevent such problems from occurring. .
Is the material used in your home ordinary carbon steel?
This post was last edited by Refiner on 2024-7-26 at 14:57. We used to use carbon steel as well, but now we have upgraded to stainless steel 304; there have been virtually no leaks
It was carbon steel before, but it was later changed to 0cr18ni10ti – it’s really good. I posted this to introduce a topic and encourage discussion among everyone.
These days, they’re basically all made of stainless steel. The previous devices that used carbon steel also leaked quite a bit, so they were replaced with stainless steel ones.
Purify the amine solution; analyze its thermal stability and salt content
We changed it to 316. It’s much better than before