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Reposted from online shares. On April 30, the 800,000-ton/year ethylene plant of the Changqing Ethane to Ethylene project, for which Huanyu Beijing Company was responsible for the EPC general contracting and Huanyu No. 6 Construction Company handled the construction of all facilities, successfully completed its commissioning. This marks a significant breakthrough in the project’s development, as it officially moves from the construction phase to the preparation stage for operation. At 9:58 a.m., the handover ceremony was held in the ethylene plant area. Leaders and representatives from Lanzhou Petrochemical Yulin Company, Huanyu Company, its affiliated Beijing Company, Liujian Company, the Quality Supervision Station, Mengxi Supervision Company, and other entities attended the event. The project manager of Beijing Huanguo Company’s ethylene plant signed the CCC certificate. At the handover ceremony, Zhang Laiyong, the deputy general manager of Huanqiu Company, extended congratulations on the successful completion of the project on behalf of the company. He urged the project team to carry out all necessary follow-up tasks such as the \"three inspections and four determinations,\" to develop safe, reasonable, and thorough plans for the final construction phases and the project’s commissioning, and to fully cooperate with the project owner in carrying out all preparations prior to commissioning. He also emphasized the need to continue to focus on safety and quality issues, so as to deliver a satisfactory result for both the group company and Lanzhou Petrochemical Company. The Changqing ethane-to-ethylene project has a total investment of nearly 10 billion yuan. It is a key project for the transformation and upgrading of Lanzhou Petrochemical and its parent company. Approved jointly by the National Development and Reform Commission and the Ministry of Industry and Information Technology, it is a demonstration project for producing ethylene through ethane cracking. It is also among the first domestic projects to produce ethylene from ethane, using CNPC’s own raw materials and its proprietary technology for ethane cracking. The project uses ethane separated from the natural gas in the Changqing Oilfield as raw material. Through steam thermal cracking, it produces chemical products such as ethylene, hydrogen, C3 and heavier components, as well as fuel oil; via polymerization reactions, polyethylene products are manufactured. It represents an effort to explore, implement, and improve the use of ethane cracking for ethylene production, building on the integration of refining and chemical processing as well as liquid-phase feedstocks from coal chemistry. This approach aims to diversify and lighten the sources of ethylene, promote structural reforms in the petrochemical industry’s supply side, further address shortages in the supply of petrochemical products, and enhance the competitiveness of ethylene-based products. The ethylene plant of the Changqing ethane-to-ethylene project consists of six sections: the cracking zone, compression zone, reaction zone, cold separation zone, refrigerant cooling zone, and utility zone. It includes 335 pieces of equipment and 6 industrial furnaces; the process pipelines total over 700,000 inches in length. There are more than 500 sets of electrical equipment, over 300 kilometers of electrical cables, and more than 4,000 sets of instrumentation equipment, with the instrumentation cables accounting for over 150 kilometers in length. Since the project officially commenced at the beginning of August 2019, its construction spanned two winters. Beijing Huanguo Company organized five \"100-day campaigns\" for civil engineering work, pyrolysis furnace construction, equipment installation, installation of large-scale equipment, process piping, and electrical instrumentation. With a shared goal, all members of the project team coordinated efficiently, worked together as a unit, and reacted promptly to various challenges such as the pandemic, sandstorms, extreme heat, and harsh winters. They created a miracle in petrochemical construction on the red land of northern Shaanxi. After 21 months, the project was successfully completed to a high standard. At the same time, as part of the overall auxiliary works for the project, the plant’s underground pipeline network, electrical systems, instrumentation, and fire protection systems were also handed over today. Thus, out of the 17 main tasks involved in the Beijing Global EPC contract project, 13 individual projects have now been completed and handed over.