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High production of furfural by flash pyrolysis of C6 sugars and lignocellulose by Pd-PdO/ZnSO4 catalyst

Author

Listed:
  • Qiaoqiao Zhou

    (Monash University)

  • Jinxing Gu

    (Monash University)

  • Jingwei Wang

    (Monash University)

  • Anthony Girolamo

    (Monash University)

  • Sasha Yang

    (Monash University)

  • Lian Zhang

    (Monash University)

Abstract

Furfural (C5H4O2) is an important platform chemical for the synthesis of next-generation bio-fuels. Herein, we report a novel and reusable heterogeneous catalyst, Pd-PdO/ZnSO4 with 1.1 mol% palladium (Pd), for the production of furfural by flash pyrolysis of lignocelluloses at 400 °C. For both dry and wet C6 cellulose and its monomers, the furfural yields reach 74–82 mol%, relative to 96 mol% from C5 xylan and 23–33 wt% from sugarcane bagasse and corncob. The catalyst has a well-defined structure and bifunctional property, comprising a ZnSO4 support for the dehydration and isomerization of glucose, and a local core-shell configuration for metallic Pd0 encapsulated by an oxide (PdO) layer. The PdO layer is active for the Grob fragmentation of formaldehyde (HCHO) from glucose, which is subsequently in-situ steam reformed into syn-gas (i.e. H2 and CO), whereas the Pd0 core is active in promoting the last dehydration step for the formation of furfural.

Suggested Citation

  • Qiaoqiao Zhou & Jinxing Gu & Jingwei Wang & Anthony Girolamo & Sasha Yang & Lian Zhang, 2023. "High production of furfural by flash pyrolysis of C6 sugars and lignocellulose by Pd-PdO/ZnSO4 catalyst," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37250-0
    DOI: 10.1038/s41467-023-37250-0
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    References listed on IDEAS

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    1. Oh, Seung-Jin & Choi, Gyung-Goo & Kim, Joo-Sik, 2015. "Fast pyrolysis of corn stover using ZnCl2: Effect of washing treatment on the furfural yield and solvent extraction of furfural," Energy, Elsevier, vol. 88(C), pages 697-702.
    2. Zhang, Haotian & Sun, Zhuxing & Hu, Yun Hang, 2021. "Steam reforming of methane: Current states of catalyst design and process upgrading," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
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