DT新材料·2025-08-24 16:04Core Viewpoint - China National Offshore Oil Corporation (CNOOC) announced the completion of the Dasha Petrochemical Refining and Chemical Integration Project in Ningbo, Zhejiang, marking the establishment of the largest world-class petrochemical industrial base in China, which is significant for enhancing the country's capability in high-end chemical materials and efficient conversion of heavy oil [2][3]. Group 1: Project Overview - The Dasha Petrochemical project has a total investment of 21 billion yuan and is the largest newly built petrochemical industrial base in China, featuring a core production facility that utilizes domestically developed technology for the direct cracking of heavy oil into chemical products, achieving a 100% domestic production rate [3]. - The project includes a 3.2 million tons per year catalytic cracking unit, which is the largest single unit for direct conversion of heavy oil to olefins in the country, producing 1.2 million tons of polymer-grade ethylene and propylene annually, essential for everyday products [5][7]. Group 2: Environmental Impact and Efficiency - The new production process reduces energy consumption per unit product by over 30% compared to traditional methods and is expected to decrease carbon dioxide emissions by 200,000 tons annually, significantly improving the efficiency of heavy oil resource utilization [7][10]. - The project aims to optimize China's petrochemical raw material structure and reduce carbon emissions from olefin products, contributing to the low-carbon transition of refining enterprises [7]. Group 3: Technological Innovations - The project team developed a novel "face-up lining construction technology" to address challenges in the installation of large equipment, which shortened the construction period by 90 days, setting a new record for the shortest installation time for such equipment in China [9][10]. - The use of new lining materials and segmented pouring techniques effectively resolved issues related to deformation and cracking during traditional construction methods [10]. Group 4: Industry Implications - The completion of the Dasha Petrochemical project enhances China's capability for independent construction of core chemical processes and equipment, accelerating the petrochemical industry's transition towards refinement and greening [10]. - This project supports the development of Ningbo as a world-class green petrochemical industrial base and contributes to the integrated development of the Yangtze River Economic Belt and the Yangtze River Delta [10].