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Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction

Author

Listed:
  • Frederico Fernandes

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Sandro Matos

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Daniela Gaspar

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Luciana Silva

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Ivo Paulo

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Salomé Vieira

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Paula C. R. Pinto

    (RAIZ—Forest and Paper Research Institute, Quinta de S. Francisco, 3801-501 Eixo, Portugal)

  • João Bordado

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

  • Rui Galhano dos Santos

    (CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)

Abstract

Biomass can be envisaged as a potential solution to mitigate the problems that the extensive exploitation of fossil sources causes on the environment. Transforming biomass into added-value products with better calorific properties is highly desired. Thermochemical liquefaction can convert biomass into a bio-oil. The work herein presented concerns the study of direct liquefaction of Eucalyptus globulus sawdust. The main goal was to optimise the operating conditions of the process to achieve high bio-oil conversion rates. Studies were carried out to understand the impact of the process factors, such as the residence time, catalyst concentration, temperature, and the biomass-to-solvent ratio. The E. globulus sawdust conversion into bio-oil was achieved with a maximum conversion of 96.2%. A higher conversion was reached when the eucalyptus sawdust’s thermochemical liquefaction was conducted over 180 min in the presence of a >2.44% catalyst concentration at 160 °C. A lower biomass-to-solvent ratio favours the process leading to a higher conversion of biomass into bio-oil. The afforded bio-oil presented a better higher heating value than that of E. globulus sawdust.

Suggested Citation

  • Frederico Fernandes & Sandro Matos & Daniela Gaspar & Luciana Silva & Ivo Paulo & Salomé Vieira & Paula C. R. Pinto & João Bordado & Rui Galhano dos Santos, 2021. "Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction," Sustainability, MDPI, vol. 13(7), pages 1-10, March.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:7:p:3717-:d:524809
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    References listed on IDEAS

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    1. Qingyue Wang & Nuerjiamali Tuohedi, 2020. "Polyurethane Foams and Bio-Polyols from Liquefied Cotton Stalk Agricultural Waste," Sustainability, MDPI, vol. 12(10), pages 1-13, May.
    2. Mateus, Maria Margarida & do Vale, Mário & Rodrigues, Abel & Bordado, João Carlos & Galhano dos Santos, Rui, 2017. "Is biomass liquefaction an option for the viability of poplar short rotation coppices? A preliminary experimental approach," Energy, Elsevier, vol. 124(C), pages 40-45.
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    Cited by:

    1. Sila Ozkan & Diogo Gonçalves & Ivo Paulo & Carla S. G. P. Queirós & Ana Carvalho & Jaime Puna & João Gomes & João Bordado & Rui Galhano dos Santos, 2023. "Modelling of Burnt Pine Heartwood Acid-Catalysed Liquefaction," Resources, MDPI, vol. 12(1), pages 1-17, January.
    2. Kuznetsov, G.V. & Malyshev, D. Yu & Syrodoy, S.V. & Gutareva, N. Yu & Purin, M.V. & Kostoreva, Zh. A., 2022. "Justification of the use of forest waste in the power industry as one of the components OF BIO-coal-water suspension fuel," Energy, Elsevier, vol. 239(PA).

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