Catalytic production of high-energy-density spiro polycyclic jet fuel with biomass derivatives  

作　　者：Wen-Jing Zhang Yan-Cheng Hu Yan-Hong Tan Jia Li Ning Li Jing-Pei Cao 

机构地区：[1]School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China [2]CAS Key Laboratory of Science and Technology on Applied Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China

出　　处：《Journal of Energy Chemistry》2025年第2期760-768,I0016,共10页能源化学(英文版)

基　　金：supported by the Fundamental Research Funds for the Central Universities(2023QN1009);Xuzhou Basic Research Project(KC23018);China University of Mining and Technology(CUMT)Open Sharing Fund for Large-scale Instruments and Equipment(DYGX-2024-34);Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘　　要：High-energy-density(HED)fuel(e.g.widely used JP-10 and RJ-4),featuring compact 3D polycyclic structure with high strain,is of critical importance for volume-limited military aircraft,since their high density and combustion heat can provide more propulsion energy.To reduce the reliance on petroleum source,it is highly desirable to develop renewable alternatives for the production of strained polycyclic HED fuel,but which remains a big challenge because of the inaccessibility caused by the high strain,We herein demonstrate a three-step catalytic route towards highly strained C_(17)and C_(18)spirofuel with biomass feedstocks.The process includes catalytic aldol condensation of renewable cyclohexanone/cyclopentanone with benzaldehyde,catalytic spiro Diels-Alder(D-A)reaction of aldol adduct with isoprene,and catalytic hydrodeoxygenation.The key spiro D-A reaction is enabled by the catalysis of heterogeneous Lewis acidic ionic liquid.The chloroaluminate IL,formed by benign urea and AICl3,exhibits good catalytic performance and reusability for this step.An eventual hydrodeoxygenation(HDO)over Pd/C and H-Y produces strained tricyclic spirofuel with density>0.93 g/mL,combustion heat>41 MJ/L and freezing point<-40℃,which are better than the properties of tactical fuel RJ-4.Therefore,it is anticipated that the as-prepared renewable fuels have the potential to replace traditional petroleum-derived HED fuels.

关 键 词：Biomass derivatives High-energy-density Spiro polycyclic fuel Cycloaddition Lewis acidic ionic liquid 

分 类 号：O62[理学—有机化学]