攻克“卡脖子”技术，我国规模最大石化产业基地新增项目建造完成

Core Insights - The Daxie 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] - The project involves 18 large-scale refining and chemical units, primarily producing high-end chemical products such as polypropylene, which are widely used in the new energy vehicle and electronics industries, with a total investment of 21 billion yuan [1] - The project has overcome several key technical challenges in the refining sector, establishing the largest heavy oil-to-olefins facility in the country, thus providing core technological support for the self-sufficiency of high-end chemical material supply chains in China [1][2] Investment and Production Capacity - The project is designed to process 12 million tons of crude oil annually, producing over 1 million tons of olefins and aromatics, utilizing domestically sourced medium and light crude oil supplemented by imported crude [1] - The core unit, a 3.2 million tons/year catalytic cracking facility, is the largest heavy oil-to-polymer-grade olefins equipment in the country, producing high-purity ethylene and propylene for various applications including mineral water bottles and high-end cables [2] - The olefin production capacity of Daxie Petrochemical is expected to reach 1.8 million tons per year, positioning it as the largest heavy oil-to-olefins base in China [2] Technological Advancements - The project employs innovative construction techniques that reduced the construction period by 90 days, setting a new record for the shortest installation time for large equipment in the country [1] - Daxie Petrochemical focuses on developing high-end strategic new materials, including recyclable cable materials and ultra-high molecular weight polyethylene, creating a complete innovation ecosystem from R&D to industrial application [2]