Core Viewpoint - The XNC-98-5 large methanol synthesis catalyst developed by Sinochem Southwest Chemical Research and Design Institute has successfully passed performance validation after nearly three years of use in a 1.83 million tons/year methanol plant of China Energy Group, indicating a successful domestic replacement of imported catalysts [1][4]. Group 1: Catalyst Performance - The catalyst has shown superior performance in key indicators such as bed pressure drop, MTO methanol quality, and purified gas consumption compared to imported catalysts [1][4]. - During the final 72-hour assessment period, the catalyst met design and technical protocol requirements for methanol production, including purified gas consumption per ton of methanol, methanol yield, and important operational parameters [4]. - The catalyst maintained excellent methanol conversion rates, selectivity, and thermal stability, with operational temperature and pressure below design values, achieving a lifespan target of at least three years [4]. Group 2: Industry Context - Historically, China's large methanol plants have relied on imported methanol synthesis technology and catalysts, with over 40 million tons of capacity built or under construction using Davy radial water-cooled tower technology [4][5]. - The Sinochem Southwest Institute began research on low-pressure methanol synthesis technology and catalysts in the late 1970s and has been developing large-scale catalysts since 2008 to meet the industry's needs for domestic alternatives [5]. - The catalyst was first used in the China Energy Group's methanol plant in September 2022, following two cycles of using imported catalysts since the plant's commissioning in 2016 [5].

Core Viewpoint - The Jilin Petrochemical Ethylene Plant has successfully transitioned to using the domestically produced catalyst BCE-H100, achieving cost reductions and product quality improvements in the production of PE-HD 5025F film material [1] Group 1: Product Transition - The plant has completed the transition to producing PE-HD 5025F film material using the domestic catalyst, which has resulted in successful product blow molding and compliance with quality standards [1] - PE-HD 5025F is characterized by high molecular weight and bimodal properties, offering excellent hardness, toughness, impact strength, and processing performance, making it suitable for shopping bags, handbags, and packaging films [1] Group 2: Cost Reduction and Efficiency - The use of the domestic catalyst has led to a cost reduction of over 1.8 million yuan per ton, enhancing the economic viability of the production process [1] - The transition has significantly improved cost efficiency and has provided valuable experience for further promoting the localization of catalysts [1] Group 3: Market Competitiveness - The introduction of high-end film material varieties has optimized the product structure and strengthened market competitiveness [1] - The successful transition involved thorough communication with the catalyst manufacturer and meticulous planning to ensure a smooth production process [1]