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The storage stability of biocrude obtained by the hydrothermal liquefaction of microalgae

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  • Palomino, Alejandra
  • Godoy-Silva, Rubén Darío
  • Raikova, Sofia
  • Chuck, Christopher J.

Abstract

Hydrothermal liquefaction (HTL) is a promising technology that can produce biocrude oil from wet biomass. The biocrudes, while generally acknowledged to be more stable than pyrolysis oils, are still thought to degrade relatively quickly, which limits their applicability. In this investigation, the storage stability of biocrude produced from hydrothermal liquefaction of microalgae was systematically studied over 60 days, and the effect of the storage material, feedstock species, liquefaction temperature and storage temperature were assessed. Biocrudes obtained at 300 °C and 350 °C from the microalgae Spirulina and Chlorella vulgaris were stored at three temperatures: cold (4 °C), ambient (20 °C) and elevated temperatures (35 °C), over the two-month period. The dynamic viscosity, higher heating value, thermogravimetric analysis and elemental and chemical composition were assessed. The viscosity of the biocrudes only increased considerably at 35 °C. The reaction temperature and biomass type were also strong determining factors of the impact on biocrude stability. Biocrudes produced from C. vulgaris were more stable than the Spirulina, and the crudes formed at 350 °C were considerably less reactive than those produced at 300 °C. This demonstrates that biocrudes can be stored without substantial degradation, allowing a more flexible approach to upgrading to value products.

Suggested Citation

  • Palomino, Alejandra & Godoy-Silva, Rubén Darío & Raikova, Sofia & Chuck, Christopher J., 2020. "The storage stability of biocrude obtained by the hydrothermal liquefaction of microalgae," Renewable Energy, Elsevier, vol. 145(C), pages 1720-1729.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1720-1729
    DOI: 10.1016/j.renene.2019.07.084
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    Citations

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    Cited by:

    1. Makoto M. Watanabe & Andreas Isdepsky, 2021. "Biocrude Oil Production by Integrating Microalgae Polyculture and Wastewater Treatment: Novel Proposal on the Use of Deep Water-Depth Polyculture of Mixotrophic Microalgae," Energies, MDPI, vol. 14(21), pages 1-29, October.
    2. Sharma, Nishesh & Jaiswal, Krishna Kumar & Kumar, Vinod & Vlaskin, Mikhail S. & Nanda, Manisha & Rautela, Indra & Tomar, Mahipal Singh & Ahmad, Waseem, 2021. "Effect of catalyst and temperature on the quality and productivity of HTL bio-oil from microalgae: A review," Renewable Energy, Elsevier, vol. 174(C), pages 810-822.
    3. Aljabri, Hareb & Das, Probir & Khan, Shoyeb & AbdulQuadir, Mohammad & Thaher, Mahmoud & Hawari, Alaa H. & Al-Shamary, Noora Mahmoud, 2022. "A study to investigate the energy recovery potential from different macromolecules of a low-lipid marine Tetraselmis sp. biomass through HTL process," Renewable Energy, Elsevier, vol. 189(C), pages 78-89.
    4. Chen, Chao & Liang, Rui & Ge, Yadong & Li, Jian & Yan, Beibei & Cheng, Zhanjun & Tao, Junyu & Wang, Zhenyu & Li, Meng & Chen, Guanyi, 2022. "Fast characterization of biomass pyrolysis oil via combination of ATR-FTIR and machine learning models," Renewable Energy, Elsevier, vol. 194(C), pages 220-231.
    5. Zhao, Kaige & Li, Wanqing & Yu, Yingying & Chen, Guanyi & Yan, Beibei & Cheng, Zhanjun & Zhao, Hai & Fang, Yang, 2023. "Speciation and transformation of nitrogen in the hydrothermal liquefaction of wastewater-treated duckweed for the bio-oil production," Renewable Energy, Elsevier, vol. 204(C), pages 661-670.
    6. Vieira de Mendonça, Henrique & Assemany, Paula & Abreu, Mariana & Couto, Eduardo & Maciel, Alyne Martins & Duarte, Renata Lopes & Barbosa dos Santos, Marcela Granato & Reis, Alberto, 2021. "Microalgae in a global world: New solutions for old problems?," Renewable Energy, Elsevier, vol. 165(P1), pages 842-862.

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