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Promotional effect of F for Pd/HZSM-5 catalyst on selective HDO of biobased ketones

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  • Jiang, Jingyun
  • Ding, Wentao
  • Li, Hao

Abstract

In this work, fluorine-enhanced Pd/HZSM-5 catalyst was synthesized for selective hydrodeoxygenation of biomass derived ketones by using polymethylhydrosiloxane (PMHS) as the hydrogen source under mild conditions. According to characterizations, the highly electronegative F can replace the OH group on the HZSM-5 to form a special F-Al structure over the Pd/HZSM-5 catalyst, thereby the surface morphology, hydrophobicity, acidity and electronic character of Pd/HZSM-5 catalyst can be regulated by the amount of fluorine doping. The Pd-F/HZSM-5(5) catalyst with F-doping at 5 wt% exhibited the best catalytic activity and water-resistance for acetophenone hydrodeoxygenation among a series of Pd-based catalysts, achieving >99% yield and 93.7% yield toward ethylbenzene at 65 °C for 3 h in ethanol and in 95 vt% ethanol, respectively. The F-Al structure formed by the F modification replaces the -OH on the HZSM-5, which inhibited the adsorption to water on the metal active site of the catalyst, thus effectively improving the catalytic performance for selective hydrodeoxygenation of biomass-derived ketones. In addition, the as-prepared Pd-F/HZSM-5(5) catalyst with an excellent circulation capability after 5 times use, and the >90% yield of deoxidation production can be obtained for the HDO of various biomass-derived ketones.

Suggested Citation

  • Jiang, Jingyun & Ding, Wentao & Li, Hao, 2021. "Promotional effect of F for Pd/HZSM-5 catalyst on selective HDO of biobased ketones," Renewable Energy, Elsevier, vol. 179(C), pages 1262-1270.
    • Handle: RePEc:eee:renene:v:179:y:2021:i:c:p:1262-1270
    DOI: 10.1016/j.renene.2021.07.065
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    References listed on IDEAS

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    1. Fan, Xu-dong & Wu, Yu-jian & Li, Zhi-yu & Sun, Yan & Tu, Ren & Zhong, Pei-Dong & Jiang, En-chen & Xu, Xi-wei, 2020. "Benzene, toluene and xylene (BTX) from in-situ gas phase hydrodeoxygenation of guaiacol with liquid hydrogen donor over bifunctional non-noble-metal zeolite catalysts," Renewable Energy, Elsevier, vol. 152(C), pages 1391-1402.
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    Cited by:

    1. Yu, Yixuan & Liu, Huai & Zhang, Junhua & Zhang, Heng & Sun, Yong & Peng, Lincai, 2023. "Highly efficient, amorphous bimetal Ni-Fe borides-catalyzed hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran," Renewable Energy, Elsevier, vol. 209(C), pages 453-461.
    2. Li, Tong & Li, Hao & Li, Chunli, 2022. "Self-support semi-hollow carbon nanosphere supported palladium catalyst for biomass upgrading," Renewable Energy, Elsevier, vol. 191(C), pages 101-109.
    3. Goyal, Reena & Abraham, B. Moses & Singh, Omvir & Sameer, Siddharth & Bal, Rajaram & Mondal, Prasenjit, 2022. "One-pot transformation of glucose into hydroxymethyl furfural in water over Pd decorated acidic ZrO2," Renewable Energy, Elsevier, vol. 183(C), pages 791-801.

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