让地沟油“变身”航空燃料

Core Viewpoint - The company has successfully developed the HEFA technology route for producing sustainable aviation fuel (SAF) and has become the first private enterprise in China to obtain airworthiness certification for its SAF product, which is set to contribute significantly to carbon reduction and food safety [1][2]. Group 1: Technology Development - The SAF is produced from waste oils such as gutter oil, reducing carbon emissions by 85% compared to traditional fossil fuels, while also addressing food safety issues [2]. - The company has spent five years overcoming technical challenges related to low product yield and short production cycles, successfully mastering the HEFA technology route [2]. - The HEFA technology involves hydrogenation and deoxygenation processes to convert waste oils into sustainable aviation fuel with performance comparable to existing aviation kerosene [2]. Group 2: Technical Innovations - The company has developed high-acid-resistant and water-resistant catalyst carriers to process high-acid waste oils, ensuring stable long-term operation [3]. - High-performance isomerization agents have been created to precisely control reaction spaces and branched positions, significantly increasing the yield of sustainable aviation fuel [3]. - Advanced fluidized bed reactors and new molecular sieve isomerization catalysts have been implemented, achieving a total yield of over 72% for sustainable aviation fuel and lowering the freezing point to below -42°C [3]. Group 3: Expansion Plans - The company recognizes the need for increased production capacity and reduced costs to meet the actual demand for SAF in light of the "dual carbon" goals [4]. - A project to process 1 million tons of waste oils into sustainable aviation fuel has been approved by the government, with construction starting in October 2024 and expected completion by the end of 2025 [4]. - Upon completion, the annual processing capacity for SAF will increase from 200,000 tons to 1 million tons, with an expected output of 700,000 to 800,000 tons per year [4].