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Xingyu Zhang, Aoyi Tang, Youjing Tu, Ruikai Li, Yao Zhang, Ze Song, Xinhao Shen, Junhong Liu, Yuan Liang, Shenggang Li, Lingzhao Kong. Efficient polyolefin plastic upcycling into jet fuel components over a Fe/Beta catalyst in decalin. Green Energy&Environment. doi: 10.1016/j.gee.2026.01.003
Citation: Xingyu Zhang, Aoyi Tang, Youjing Tu, Ruikai Li, Yao Zhang, Ze Song, Xinhao Shen, Junhong Liu, Yuan Liang, Shenggang Li, Lingzhao Kong. Efficient polyolefin plastic upcycling into jet fuel components over a Fe/Beta catalyst in decalin. Green Energy&Environment. doi: 10.1016/j.gee.2026.01.003
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Efficient polyolefin plastic upcycling into jet fuel components over a Fe/Beta catalyst in decalin

doi: 10.1016/j.gee.2026.01.003

  • a. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P.R. China;

  • b. Low-Carbon Conversion Science and Engineering Centre and State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P.R. China

Funds:

This work was supported by the National Natural Science Foundation of China (22278419, 22172188, 22293023), the Key Core Technology Research (Social Development) Foundation of Suzhou (2023ss06), Shanghai Sailing Program from the Science and Technology Commission of Shanghai Municipality (23YF1453400), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB1500103).

  • Received date 05 November 2025, Accepted date 07 January 2026, RevRecd date 22 December 2025, Available online 15 January 2026
    Abstract
  • Jet-range hydrocarbons were produced from polyolefin waste via a one-pot conversion of high-density polyethylene (HDPE) in decalin using a bifunctional Fe/Beta catalyst. Operating at 300 °C for 90 min afforded a liquid yield of 84.0 wt%, with 96.9 area% in the kerosene cut (C8–C16). The liquid product is rich in cycloalkanes (61.8 area%) and paraffins (24.4 area%), while aromatics remain limited (13.8 area%), consistent with aviation fuel specifications. Structure–performance analysis links the high activity and selectivity to uniformly dispersed Fe nanoparticles (2–5 nm) cooperating with tuned Brønsted/Lewis acidity on Beta zeolite. This metal–acid synergy enables controlled C–C scission and efficient hydrogenation, suppressing olefin accumulation and over-aromatization, thereby enhancing fuel quality. The results demonstrate a practical, mild route to upgrade plastic waste into drop-in jet-fuel components.

     

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