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Production of advanced fuels from vegetable oils via cobalt-catalyzed reductive decarboxylation

Author

Listed:
  • Silva, Elon F.
  • do N. Silva, Pedro H.
  • da Silva, Johnathan H.F.
  • da C. Barros, Rauan D.
  • Furtado, Monique E.S.A.
  • Lemos, Thays L.
  • Câmara, Jhonatan F.
  • Gondim, Amanda D.
  • Martínez-Huitle, Carlos A.
  • dos Santos, Elisama V.
  • de M. Araújo, Aruzza M.
  • dos Anjos, Aecia S.D.
  • Cavalcanti, Lívia N.

Abstract

A cobalt-catalyzed reductive decarboxylation protocol was developed to produce renewable hydrocarbons from redox-active esters derived from vegetable oils. Using a commercially available cobalt catalyst (CoSO4·7H2O) and poly(methylhydrosiloxane) (PMHS) as a sustainable hydrogen source under mild conditions (40 °C, ambient pressure, 20 h), the effective production of linear hydrocarbons was achieved. After optimization, the method enabled the formation of hydrocarbons within the aviation bio-kerosene and green diesel ranges, with conversions of 56–99 % and yields of 16–80 %. The one-pot procedure simplified product purification through silica gel filtration. The method was successfully applied to various fatty acid mixtures, including those bio-derived from a wide scope of vegetable oils, affording >99 % conversions and overall yields of 27–73 %, thereby demonstrating its feasibility for generating advanced biofuels compatible with existing infrastructure. This approach provides a promising alternative to conventional deoxygenation protocols, promoting the sustainable production of fuels derived from renewable resources with potential applications in aviation.

Suggested Citation

  • Silva, Elon F. & do N. Silva, Pedro H. & da Silva, Johnathan H.F. & da C. Barros, Rauan D. & Furtado, Monique E.S.A. & Lemos, Thays L. & Câmara, Jhonatan F. & Gondim, Amanda D. & Martínez-Huitle, Carl, 2026. "Production of advanced fuels from vegetable oils via cobalt-catalyzed reductive decarboxylation," Renewable Energy, Elsevier, vol. 257(C).
    • Handle: RePEc:eee:renene:v:257:y:2026:i:c:s0960148125024127
    DOI: 10.1016/j.renene.2025.124748
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    References listed on IDEAS

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    1. Zhan Li & Ke-Feng Wang & Xin Zhao & Huihui Ti & Xu-Ge Liu & Honggen Wang, 2020. "Manganese-mediated reductive functionalization of activated aliphatic acids and primary amines," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
    2. Souza, Márcio C.M. & Maia, Francisco A.D. & Pinto, Vasco L. & Costa, Maria J.F. & Araújo, Aruzza M.M. & da Silva, Djalma R. & Santos, Anne Gabriella D. & Gondim, Amanda D., 2023. "Highly porous cobalt and molybdenum-containing ordered silica applied to pyrolysis of sunflower oil into bio-hydrocarbons," Renewable Energy, Elsevier, vol. 215(C).
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    4. Burimsitthigul, Thikhamporn & Yoosuk, Boonyawan & Ngamcharussrivichai, Chawalit & Prasassarakich, Pattarapan, 2021. "Hydrocarbon biofuel from hydrotreating of palm oil over unsupported Ni–Mo sulfide catalysts," Renewable Energy, Elsevier, vol. 163(C), pages 1648-1659.
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