Amine solution regeneration
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Does the amine solution turn red due to oxidation? How can the amine solution be protected? How to ensure the effectiveness of amine solution regeneration
Does turning red mean there is iron oxide? ? Haven’t encountered it, please provide the result
Reddish color of the amine solution is usually caused by degradation leading to system corrosion, as well as high levels of iron ions. Check whether the composition of the amine solution is normal, the heat-stable salt content, and analyze the anion composition, etc. Check again whether there are any parts of the system that could be exposed to oxygen, as well as the nitrogen sealing condition of the amine solution buffer tank. If your amine solution is not only for use in your own equipment, take a look at the operation of other related systems, such as nitrogen sealing.
Fresh amine solution is beer-colored; did your amine solution suddenly turn red, or has it been dark red from the start of operation? Be careful not to let it oxidize; use nitrogen sealing
We encountered this issue; it was caused by high levels of heat-stable salts in the amine solution, which led to corrosion throughout the system (later, a lot of pipeline and equipment were replaced during maintenance). It is recommended to analyze the content of thermally stable salts; if its level is high (a normal range for thermally stable salts is generally below 1.5%), then check whether there is a malfunction in the amine solution purification device. If such a device is not available, contact a specialized amine solution purification company promptly for on-site purification.
I specialize in amine solution purification; get in touch with me for help