随着石油资源的日益枯竭，对绿色可替代能源的需求不断增加。利用费托合成将非油资源合成航空燃料具有重要意义。费托合成的显著特征是产物分布广，因此设计新型催化剂以高活性、高选择性地获得航空燃料馏分（C8-C18）是研发的关键。本项目拟利用SBA-15载体的规整孔道结构，将具有酸性中心的铝原子和微孔分子筛引入介孔材料，设计结构规整且酸性可调的复合介孔载体，可控合成具有特定空间构型、孔结构和酸性的费托合成催化剂载体。然后利用超声波辅助真空浸渍法将钴物种限域于载体中，考察钴-酸性复合载体的协同效应及与活性物种间的相互作用、孔结构组成对产物选择性及反应物和产物吸脱附扩散行为的影响。考察催化剂费托反应的性能，揭示催化剂结构和酸性等因素对费托反应C8~C18产物选择性的影响，此研究将为获得具有高航空燃料选择性的费托合成催化剂奠定理论和技术基础。

As the oil supply declines, there is a greater need for cleaner alternative fuels. There will undoubtedly be a shift from crude oil to non-petroleum sources as feedstock for aviation fuels through Fischer-Tropsch synthesis. The design of novel catalyst with high C8 to C18 hydrocarbon products selectivity is critical as the product distribution of Fischer-Tropsch synthesis is too wide. Considering the uniform channels of SBA-15, Al atoms and microporous zeolite were incorporated into the mesoporous material to design composite supports with structured mesoporsous channels and adjustable acid sites. The controllable preparation of Fishcer-Tropsch catalyst support with certain space structure, porous channels and acidity will be investigated. Then Co nanoparticles was confined within the mesoporous channels through vacuum impregnation with ultrasonic treatment, The synergistic effects of cobalt-acid composite supports, the interation of supports with active species, the relation of catalyst structure and product selectivity, the reactant and product adsorption/desorption behavior will be investigated. The Fischer-Tropsch synthesis performance will be characterized to reveal the influence of catalyst structure and acidity on C8 to C18 hydrocarbon products selectivity. This study will provide both theoretical and technological foundation for the production of aviation fuel.