Nature Energy intl_tech D1

发布：2026-05-28 · 事件：2026-05-28

Subjects Chemical engineering Heterogeneous catalysis Materials for energy and catalysis Abstract Converting plastic waste into jet fuel could support the decarbonization of the aviation industry, yet...

Subjects Chemical engineering Heterogeneous catalysis Materials for energy and catalysis Abstract Converting plastic waste into jet fuel could support the decarbonization of the aviation industry, yet current upcycling routes rely on high pressures (~3 MPa) and prolonged reaction times (up to 144 h). Here we report a tandem hydropyrolysis and vapour-phase hydrogenation strategy enabled by a single-atom Ru catalyst on Co-Al oxides (Ru SA @CoAlO x ). The catalyst achieves a turnover frequency of 144 s −1 for benzene hydrogenation at atmospheric pressure, exceeding that of commercial Ru/C by over 100-fold. In a tandem fixed-bed reactor with hydropyrolysis at 460 °C and downstream vapour-phase hydrogenation at 160 °C, polystyrene is converted to 94.8 wt% cycloalkanes at 0.15 MPa and to 59 wt% cycloalkanes at atmospheric pressure. The approach extends to mixed plastics, achieving jet-fuel-range hydrocarbon yields above 82 wt%. The catalyst remains stable for over 110 h during continuous vapour-phase hydrogenation. Life-cycle analysis indicates a 73% reduction in well-to-pump CO 2 emissions relative to petroleum-based jet fuel, and techno-economic analysis suggests a competitive minimum selling price of US$1.0–1.8 per kg. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution Access options Access through your institution Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 27,99 € / 30 days cancel any time Learn more Subscribe to this journal Receive 12 digital issues and online access to articles 111,21 € per year only 9,27 € per issue Learn more Buy this article Purchase on SpringerLink Instant access to the full article PDF. 39,95 € Prices may be subject to local taxes which are calculated during checkout Fig. 1: Process design for plastic upcycling to jet-fuel-range cycloalkanes. The alternative text for this image may have been generated using AI. Fig. 2: Structure and morphology characterization. The alternative text for this image may have been generated using AI. Fig. 3: Machine learning-guided analysis of key factors and catalytic performance for selective hydrogenation towards jet-fuel-range cycloalkanes. The alternative text for this image may have been generated using AI. Fig. 4: Continuous-flow vapour-phase hydrogenation of ethylbenzene and mechanistic investigation. The alternative text for this image may have been generated using AI. Fig. 5: Electronic structure and reaction energetics for styrene hydrogenation. The alternative text for this image may have been generated using AI. Fig. 6: Tandem upcycling of plastic waste to jet-fuel-range hydrocarbons. The alternative text for this image may have been generated using AI. Fig. 7: Combustion performance and sustainability assessment. The alternative text for this image may have been generated using AI. Data availability All data supporting the findings of this study are available within the Article, its Supplementary Information and the accompanying Source Data files. Source data are provided with this paper. References Li, G. et al. Production of Renewable Hydrocarbon Biofuels with Lignocellulose and Its Derivatives over Heterogeneous Catalysts. Chem. Rev. 124 , 2889–2954 (2024). Article Google Scholar Sun, D. et al. Theoretic heat sink simulation and experimental investigation of the pyrolysis of substituted cyclohexanes. J. Energy Chem. 24 , 119–125 (2015). Article Google Scholar Li, Y., Jin, B., Zhang, X. & Liu, G. Pyrolysis and heat sink of an endothermic hydrocarbon fuel EHF-851. J. Anal. Appl. Pyrol. 155 , 105084 (2021). Article Google Scholar Jia, T. et al. A comprehensive review of the thermal oxidation stability of jet fuels. Chem. Eng. Sci. 229 , 116157 (2021). Article Google Scholar Hwang, K. C. & Sagadevan, A. One-pot room-temperature conversion of cyclohexane to adipic acid by ozone and UV light. Science 346 , 1495–1498 (2014). Article Google Scholar Datta, S. et al. Self-assembled poly-catenanes from supramolecular toroidal building blocks. Nature 583 , 400–405 (2020). Article Google Scholar Chen, L. et al. Reversible dehydrogenation and rehydrogenation of cyclohexane and methylcyclohexane by single-site platinum catalyst. Nat. Commun. 13 , 1092 (2022). Article Google Scholar Allendorf, M. D. et al. Challenges to developing materials for the transport and storage of hydrogen. Nat. Chem. 14 , 1214–1223 (2022). Article Google Scholar Mehdad, A., Jentoft, R. E. & Jentoft, F. C. Single-phase mixed molybdenum-niobium carbides: synthesis, characterization and multifunctional catalytic behavior in toluene conversion. J. Catalysis 351 , 161–173 (2017). Article Google Scholar Liu, S., Kots, P. A., Vance, B. C., Danielson, A. & Vlachos, D. G. Plastic waste to fuels by hydrocracking at mild conditions. Sci. Adv. 7 , eabf8283 (2021). Article Google Scholar Lee, K., Jing, Y., Wang, Y. & Yan, N. A unified view on catalytic conver