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Recently, molecular sieve A and B of the air separation unit at the China Coal Yulin Coal Deep Processing Base project were successfully hoisted into place, marking significant progress in the project’s installation work. In the lifting operation, both molecular sieve A and B have dimensions of ф5500*28984 mm, with a weight of up to 134.7 tons; they are large horizontal equipment units. The air separation unit of the China Coal Yulin Coal Deep Processing Base project is the largest group of electrically driven air separation units built in China to date. It undertakes two important research tasks: the first application of domestically produced large motors in the air separation industry, and the research on industrial-scale air separation systems based on cryogenic energy storage. The completion and operation of this project are of great significance for promoting the utilization of wind and solar power, achieving energy savings and reduced consumption in air separation units, as well as minimizing carbon emissions. The preliminary investment estimate for the China Coal Yulin Coal Deep Processing Base project is 23.888 billion yuan. The main construction components include 2.2 million tons per year of methanol and 900,000 tons per year of polyolefins; at the same time, the existing first-phase coal chemical plant will be optimized and upgraded, with the construction of a project for the production of 250,000 tons per year of LDPE/EVA through chain extension and enhancement, along with related facilities. The main units of the project include air separation, gasification, purification, sulfur recovery, methanol synthesis, MTO, olefin separation, 3 polyolefin plants, and 1 EVA plant, among others. Completion of construction and commissioning are expected by mid-2026. Once the project is put into operation, it will effectively promote local economic and social development as well as the optimization and upgrading of the industrial structure; during peak periods, it can create employment opportunities for tens of thousands of people. By then, China Coal Shaanxi Company will further enhance the new advantages of its role as the leading enterprise in the industrial chain, promote the development of coal chemicals in a direction toward higher quality, greater diversity, and lower carbon emissions, as well as foster integrated development of coal, coal-fired power, and new energy sources, thereby creating a robust industrial and value chain.