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The 5.321 billion yuan worth olefin carbonyl new materials project of Yan’an Energy Chemicals has officially commenced construction. November 25, 2025 – On November 21, the carbonyl new materials project of Yan’an Energy Chemicals Company officially started construction. This project is a key initiative of the group company aimed at strengthening the chemical industry chain by extending and complementing it; it plays an important role in further increasing the added value of products, enhancing market competitiveness, and driving the industry chain toward greater differentiation and higher quality. The total investment in this project is 5.321 billion yuan. It focuses on the carbonylation of ethylene, propylene, and butylene to produce high-value-added products such as alcohols, aldehydes, and esters, with further expansion into products like PMMA (MS) and high-end EPDM. The project construction is carried out in an orderly manner in three phases, following the principle of \"integrated planning and phased implementation\". Phase 1 involves the planning and implementation of three projects: a second production line for EPDM with an annual capacity of 25,000 tons, an MTBE production plant with an annual capacity of 50,000 tons (including butylene isomerization), and upgrades to the ACO technology.
Additional information: It is reported that the Yan’an Coal, Oil, and Gas Resources Comprehensive Utilization Project, which is managed and operated by Yan’an Energy Chemical Co., Ltd. – a wholly-owned subsidiary of Yanchang Petroleum Group – began commercial operation in July 2020. The project features 8 main production units, including ones capable of producing 1.8 million tons per year of methanol, 600,000 tons per year of methanol derivatives, 400,000 tons per year of light oil products, 420,000 tons per year of polyethylene, 300,000 tons per year of polypropylene, 200,000 tons per year of butanol, 80,000 tons per year of 2-PH (dipropylheptyl alcohol), and 25,000 tons per year of EPDM rubber. Among them, the light oil processing unit is the first of its kind in China; the butanol/2-PH co-production unit is the world’s first of its kind; and the EPDM rubber production unit is the world’s first to utilize the solution polymerization process technology developed by the Italian company FasTech across the entire production process.
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