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]

该装置年产聚合级乙烯和丙烯达120万吨，是目前全国最大的单套重质油直接转化制聚合级烯烃装置。该装置投产后，大榭石化烯烃产能达到180万吨/ 年，成为全国规模最大重质油直接转化制烯烃生产基地。 【原标题】全面建成！关键工艺国产化率达100% ▲图片来源：中国海油 据悉，该项目总投资额为210亿元，此次投产的核心生产装置——320万吨/年催化裂解装置，采用我国自主研发的重质油直接裂解制化学品成套工艺技 术，整体工艺国产化率达100%。 8月22日，中国海油宣布，该公司旗下所属中海石油大榭石化炼化一体化项目（以下简称大榭石化）在浙江宁波全面建成，标志着我国规模最大的石化产 业基地新增项目建造完成，对推动国家重质油高效转化、提升高端化工材料自主可控能力有着重要意义。 ...