北化院环管工艺助力聚丙烯提质

Core Viewpoint - The successful operation of the 500,000 tons/year gas-phase copolymer unit at Zhenhai Refining and Chemical Company marks a significant advancement in polypropylene production technology, utilizing the 3G+ST process developed by Sinopec Beijing Research Institute of Chemical Industry [1][2] Group 1: Technological Advancements - The Zhenhai Refining and Chemical's gas-phase copolymer unit is the largest and most advanced ST process polypropylene facility currently available [1] - The 3G+ST process addresses technical challenges such as short startup cycles and poor impact performance in copolymer production, enhancing product performance and operational stability [1][2] - Innovations include gas-phase reactor component control technology and new gas-phase fluidized bed reactor technology, which have doubled the operational cycle of the gas-phase reaction system [1] Group 2: Production Capacity and Performance - The technology has been licensed for 8 new polypropylene plants, with a total licensed capacity of 2.9 million tons/year [2] - The 3G+ST process allows for the production of high-performance polypropylene grades, including ultra-high impact, transparent impact, high gloss, and stress whitening resistant polypropylene [2] - In 2023, the Hainan Refining and Chemical's 300,000 tons/year gas-phase polypropylene unit set a new record for stable production of high rubber content products, exceeding 30% rubber phase content [2] Group 3: Recognition and Impact - The technology was awarded the First Prize for Technological Progress by Sinopec in 2024, highlighting its significance in the industry [2]