首套乙烯高选择性齐聚制a-烯烃5万吨/年投料开车成功

Core Viewpoint - The successful operation of China's first industrial unit for high-selectivity ethylene oligomerization to produce 50,000 tons/year of alpha-olefins marks a significant achievement in overcoming technological barriers and achieving domestic production capabilities in high-end polyethylene materials. Group 1: Technological Challenges - High technical barriers exist due to the complexity of the catalytic system required for synthesizing 1-octene, which necessitates precise control of carbon chain growth to C8 while suppressing by-products [1] - The reaction conditions are stringent, requiring high temperature and pressure to achieve high conversion rates and selectivity, posing challenges to catalyst stability and reactor design [1] Group 2: Foreign Technology Monopoly - A few global companies, such as Shell and Chevron Phillips, dominate the mature technology landscape, with core patents and catalyst formulations kept confidential, leading to high costs and limitations in technology transfer [2] Group 3: Material and Engineering Challenges - The domestic production of catalysts is difficult due to the synthesis of high-performance ligands involving rare metals or complex organic processes, compounded by an incomplete domestic supply chain [3] - The separation and purification of 1-octene face bottlenecks due to the close boiling points of similar carbon-number olefins, necessitating significant investment in efficient distillation or adsorption separation technologies [3] Group 4: R&D Investment and Time Costs - Transitioning from laboratory trials to industrial-scale production requires long-term iterations, addressing issues such as catalyst lifespan and reactor scaling effects, with high risks of failure [4] - Institutions like the Chinese Academy of Sciences and Sinopec have taken over a decade to overcome chromium-based catalyst technology challenges [4] Group 5: Market and Application Barriers - 1-octene is a critical co-monomer for high-end polyethylene (e.g., LLDPE), with downstream purity requirements exceeding 99%, which may lead to initial trust issues regarding quality stability in domestic production [5] - The successful resolution of this "impossible task" signifies China's transition from a follower to a competitor in the high-end polyolefin materials sector, highlighting the importance of collaborative innovation across fundamental research, engineering, and supply chains [5] - Feichao New Materials is actively involved in various pilot projects for different process routes of alpha-olefins and the construction of this industrial project, demonstrating its commitment to R&D innovation and deepening its focus on filtration technology [5]