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MEA corrosion problems will seriously threaten the stability and safety of the distillation process, leading to equipment damage, unplanned shutdowns and product quality fluctuations. Its specific impact is as follows: Degraded performance of critical equipment: Corrosion mainly occurs in high-temperature or gas-liquid interface areas such as reboilers, heat exchangers, regeneration towers and pipeline valves. Under long-term effects, it will cause pipe wall thinning, perforation and even leakage, seriously affecting the continuous operation ability of the device. Process parameters are out of control: Corrosion products (such as iron ions) will contaminate the amine liquid and reduce its absorption efficiency, resulting in incomplete removal of acidic gases such as H₂S and CO₂, affecting the quality of subsequent products. ； At the same time, pH fluctuations intensify, which can easily lead to system scaling and secondary corrosion. Increase operation and maintenance costs and security risks: Frequent replacement of corroded parts and shutdown for maintenance not only increases maintenance costs, but may also cause safety accidents such as H₂S poisoning and fire due to leakage, threatening personnel and environmental safety. Limit space for process optimization: In order to slow down corrosion, it is often necessary to lower the operating temperature and reduce the concentration or load of the amine liquid. This will sacrifice the desulfurization efficiency and processing capacity and restrict the efficient operation of the device. Impact on environmental protection standards: Corrosion leads to seal failure or processing unit abnormalities, which may cause acid gas emissions to exceed standards and violate environmental regulations. Therefore, MEA corrosion prevention and control must be incorporated into the entire process management of the distillation process, and the long-term stable operation of the system can be ensured through material upgrading, corrosion inhibitor addition, and real-time monitoring.