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I. A brief analysis of the reasons for leaks in ammonia tanks: (1) Improper design and manufacturing of the ammonia tank – inappropriate materials used in its design and manufacture or insufficient wall thickness, which prevents it from withstanding the operating pressure and leads to rupture and leakage. (2) Incomplete or failed safety devices: If a safety valve is not installed or is malfunctioning, it is impossible to release pressure. Should pressure increase suddenly due to changes in operating conditions and exceed the tolerance limit of the ammonia tank, this can lead to ammonia leakage. (3) Operational defects of ammonia tanks: Ammonia is a stress-corrosion sensitive medium, and the stress corrosion caused by liquid ammonia can lead to the rupture of ammonia tanks. Additionally, ammonia tanks that are in operation for extended periods suffer from corrosion due to internal and external substances, which results in a reduction of the wall thickness; this too can cause the tanks to rupture and lead to ammonia leaks. (4) Defects in the accessories of the ammonia tank: Problems or failures in the accessories of the ammonia tank, such as flanges, valves, pipes, level gauges, elbows, safety valves, etc., can also lead to ammonia leaks. II. On-site treatment technology for Sorey carbon nanopolymer materials: The Sorey repair technique makes use of the unique bonding properties, corrosion resistance, mechanical strength, acid and alkali resistance of carbon nanopolymer materials, along with specialized repair processes, to address leakage issues in ammonia tanks in real time. The repair process is simple and easy to operate, which significantly reduces the treatment time; it poses no safety risks, allows for online treatment, and features high efficiency in repairs – making it a perfect alternative to traditional patch welding methods. During use, the ammonia storage tank of a certain enterprise often experiences problems such as spot leaks or crack-related leaks at the weld areas or on the tank surface, due to environmental factors and the impact of the medium’s temperature on the tank, including corrosion caused by leakage of the medium. As the service life extends, its leakage problem becomes particularly severe. Ammonia water storage tank parameters: Medium includes ammonia water, tar, etc ； Temperature 80-90°C ； Leakage locations: Leakage at the weld seam on the top edge, as well as local defects and holes in the tank body ； Pressure: Self-pressure of the tank. The repair method is as follows: 1) The ammonia storage tank where the leakage occurred is located at the top of the tank body ； 2) Observe up close the location of leakage points, the pattern of leakage, and the extent of corrosion, and determine the remediation plan ； 3) Use a copper brush and sandpaper to treat the metal surface around the leak site, exposing a solid metal surface and removing tar, impurities, dirt, and other contaminants from it ； 4) The surface that has undergone surface treatment is cleaned and rinsed with anhydrous ethanol to further remove impurities and ensure bonding quality ； 5) First, the Sorex SD7101H material is used to seal the leak points online; the material cures rapidly at the temperature of the tank itself, thereby achieving the purpose of fixing the leaks ； 6) The Sorex SD8005 material is used to provide additional reinforcement and protection for the repaired area, offering properties such as corrosion resistance and aging resistance. Since ammonia is a flammable, explosive, and toxic liquid, a leak from an ammonia tank can cause serious hazards. First, its pungent odor can trigger severe irritation in the human body ； Secondly, explosions can occur when the concentration reaches a critical level, so problems need to be addressed promptly. The use of Sorey carbon nanopolymer materials allows for repairs to be carried out in a short time, with good results, enabling rapid response on site and helping companies save resources.