让更少的煤“变”出更多的油——记中国专利金奖项目“低温费托合成催化剂及其制备方法和应用”

Core Viewpoint - The development of the Fischer-Tropsch iron-based catalyst, known as CNFT, significantly enhances the efficiency of coal-to-oil conversion, addressing key challenges in the coal indirect liquefaction technology [1][2]. Group 1: Catalyst Development - The CNFT catalyst was developed by the National Energy Group to improve coal-to-oil technology, which is crucial for energy security in China due to its rich coal and limited oil resources [2]. - Initial challenges included insufficient wear resistance and stability, as well as low activity and yield of high-value products [2]. - The research team innovatively combined iron and silicon under controlled conditions, enhancing catalyst strength while maintaining active surface area, and utilized low-temperature preparation to prevent pore structure issues [2][3]. Group 2: Industrial Scaling Challenges - The transition from laboratory to industrial scale faced multiple challenges, including issues with wear resistance and product quality during the scaling process [3][4]. - The team conducted extensive trials, including a 2000-hour long-term operation test, to refine the catalyst formulation and address industrial application requirements [3][4]. - Continuous production faced difficulties due to the viscosity of the catalyst slurry, which required custom equipment and solutions to ensure stable operation [4]. Group 3: Performance and Impact - The CNFT-1 catalyst has been successfully implemented in major coal indirect liquefaction plants, resulting in a 5% increase in production capacity and extending maintenance intervals from one year to three years [5]. - The catalyst also improved the yield of high-value oil wax by 14% compared to similar catalysts, driving overall industry advancements [5]. - Following the success of CNFT-1, a new generation of low CO2 selective CNFT-2 catalyst was developed, reducing CO2 emissions by 15,000 tons annually for every million tons of oil produced [5].