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On September 20, the groundbreaking ceremony was held for the 40,000 Nm3/h air separation nitrogen production facility and its associated systems at CNOOC Ningbo Daxie Petrochemical Co., Ltd. Relevant leaders from the project’s construction parties were present to witness the event, wishing the project a complete success. The project is located in Beilun District, Ningbo City, Zhejiang Province. Its main construction task is to build a deep-cold air separation nitrogen production plant with a capacity of 40,000 Nm3/h (including a 35 kV substation). It involves a wide range of specialized tasks that require high levels of expertise, such as air pre-cooling systems, purification systems, distillation towers, liquid nitrogen storage tanks, vaporization systems, as well as the civil engineering and installation work for related production auxiliary facilities. This includes various fields such as civil engineering (including pile foundations), steel structures, process engineering, equipment, piping, water supply and drainage systems, heating and ventilation, electrical systems, telecommunications, automatic control instruments, fire protection, environmental protection, occupational health, detection of toxic and harmful gases, as well as energy conservation measures. At the same time, there are many large-scale pieces of equipment, and these devices are extremely long, tall, and heavy. Coupled with the fact that the construction area is separated from the production area, transporting and lifting such equipment becomes more difficult, which increases the challenges associated with safety supervision. The technical performance indicators of this air separation unit are among the best in China, and the nitrogen recovery rate reaches an internationally advanced level. Once completed, it will further enhance the competitiveness and economic efficiency of the Daxie Petrochemical industry, laying a solid foundation for its high-quality and sustainable development. The project team will take greater responsibility, work closely together, go all out, reverse-engineer the schedule, seize favorable opportunities, carry out construction in a scientific and standardized manner, and advance the project construction to high standards in order to create high-quality projects. The goal is to complete the projects as soon as possible so that benefits can be realized early, thereby establishing a positive corporate brand image through outstanding results.