Bei Jing Ri Bao Ke Hu Duan·2025-08-23 08:53Core Insights - The Dasha Petrochemical Refining and Chemical Integration Project in Ningbo has been fully completed, marking the addition of a new project to China's largest petrochemical industrial base, with total olefin production capacity exceeding 10 million tons [1][6] - The project involves 18 large refining and chemical units, primarily producing high-end chemical products such as polypropylene, widely used in the new energy vehicle and electronics industries, with a total investment of 21 billion yuan [1][5] - The project utilizes domestically sourced medium and light crude oil, supplemented by imported crude oil, and employs a "deep catalytic cracking" process to expand into downstream chemical industries [5][6] Technological Advancements - The project has overcome several critical technologies in the refining sector, establishing the largest heavy oil-to-olefins facility in the country, thus providing core technological support for the independent control of high-end chemical material supply chains [6][8] - The innovative "upside-down lining construction technology" was introduced for the installation of core equipment, which includes a reactor and regenerator with the largest diameter in the country, enhancing construction efficiency [3][6] - The core unit, a 3.2 million tons/year catalytic cracking facility, is the largest heavy oil-to-polymer-grade olefins equipment in the nation, producing high-purity ethylene and propylene for various applications [8][10] Environmental Impact - The new production process reduces unit product energy consumption by over 30% compared to traditional methods and is expected to decrease carbon dioxide emissions by 200,000 tons annually, significantly improving the utilization efficiency of heavy oil resources [5][6] - The project focuses on developing high-end strategic new materials, including recyclable cable materials and ultra-high molecular weight polyethylene, contributing to an innovative ecosystem from research and development to industrial application [10]