中化西南院甲醇合成催化剂媲美进口 顺利通过性能标定

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].