装置于2022年11月12日桩基开工，2023年4月1日土建开工，2024年11月30日机械竣工，2025年4月30日 中间交接，2025年8月31日一次开车成功，全程彰显了"吉化速度"。 建设过程中，吉林石化坚持以系统思维强化组织领导，建立"3+1+3"架构体系，推动管理决策、资源调 配、现场执行有机衔接；坚持以精益思想强化过程把控，突出"六大控制""六化"建设等核心目标要求， 以《项目管理手册》为项目运行管理总纲要，明确《项目总体部署》的指导性地位，实施A、B、C分 级分类管控，以会战机制保证施工节点、保障整体节奏。项目建设团队创新采用"模块化施工+数字化 交付"模式，攻克多项行业难题：成功完成急冷水塔、乙烯塔、丙烯塔等大型设备的超限运输与精准吊 装，创造极寒天气下5台千吨级大塔"37天5吊"、16台超限塔"55天16吊"的行业纪录，裂解炉安装周期较 行业平均水平压缩3个月。累计完成桩基4241根、混凝土浇筑5.3万立方米、工艺管道焊口147万吋、钢 结构2.6万吨；安装工艺设备559台（套）、敷设电气电缆645.2公里、仪表电缆1442.7公里，安装电气设 备772台（套）、仪表设备10246台（套）。 ...

Core Insights - China National Offshore Oil Corporation (CNOOC) announced the successful commissioning of the Dasha Petrochemical Integration Project in Ningbo, Zhejiang, marking the completion of the largest world-class petrochemical industrial base in China, enhancing the country's capability for efficient heavy oil conversion and self-sufficiency in high-end chemical materials [1][2] Investment and Production Capacity - The total investment for the project is 21 billion yuan, making it the largest newly constructed petrochemical industrial base in China. The core production unit utilizes domestically developed technology for direct cracking of heavy oil into chemical products, achieving a 100% domestic production rate [2][3] - The project features a catalytic cracking unit with an annual capacity of 3.2 million tons, producing 1.2 million tons of polymer-grade ethylene and propylene, which are essential raw materials for everyday products such as mineral water bottles and food packaging [2][3] Environmental Impact and Efficiency - The new production process reduces energy consumption per unit product by over 30% compared to traditional methods, leading to a reduction of 200,000 tons of carbon dioxide emissions annually, significantly improving the efficiency of heavy oil resource utilization [2][3] - The project contributes to the low-carbon transition of refining enterprises and has profound implications for optimizing China's petrochemical raw material structure and reducing carbon emissions from single-unit olefin products [2][3] Technological Innovation - The construction faced challenges due to the unique design of the core equipment, which required innovative "upside-down lining construction technology" to install a giant steel bowl weighing 1,145 tons at a height of 25 meters, shortening the construction period by 90 days [4] - The project sets a new benchmark for the construction of large-scale petrochemical equipment in China, enhancing the country's capabilities in core chemical processes and equipment manufacturing [4]

Group 1 - China National Offshore Oil Corporation (CNOOC) announced the completion of the Dasha Petrochemical Integration Project in Ningbo, Zhejiang, marking a significant addition to China's largest petrochemical industrial base [1][3] - The total investment for the project is 21 billion yuan, with the core production unit being a 3.2 million tons per year catalytic cracking unit, utilizing domestically developed technology for direct cracking of heavy oil [3] - The unit is capable of producing 1.2 million tons of polymer-grade ethylene and propylene annually, making it the largest single unit for direct conversion of heavy oil to polymer-grade olefins in the country [3] Group 2 - After the commissioning of the catalytic cracking unit, the Dasha Petrochemical's olefin production capacity will reach 1.8 million tons per year, establishing it as the largest production base for direct conversion of heavy oil to olefins in China [3]