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Article

Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction

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CERENA—Centre for Natural Resources and the Environment, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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RAIZ—Forest and Paper Research Institute, Quinta de S. Francisco, 3801-501 Eixo, Portugal
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Author to whom correspondence should be addressed.
Academic Editors: Adam Smoliński and Jorge Rodríguez-Chueca
Sustainability 2021, 13(7), 3717; https://doi.org/10.3390/su13073717
Received: 19 February 2021 / Revised: 20 March 2021 / Accepted: 24 March 2021 / Published: 26 March 2021
(This article belongs to the Section Sustainable Chemical Engineering and Technology)
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. View Full-Text
Keywords: sustainable; eucalyptus; liquefaction; biofuels sustainable; eucalyptus; liquefaction; biofuels
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MDPI and ACS Style

Fernandes, F.; Matos, S.; Gaspar, D.; Silva, L.; Paulo, I.; Vieira, S.; C. R. Pinto, P.; Bordado, J.; Galhano dos Santos, R. Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction. Sustainability 2021, 13, 3717. https://doi.org/10.3390/su13073717

AMA Style

Fernandes F, Matos S, Gaspar D, Silva L, Paulo I, Vieira S, C. R. Pinto P, Bordado J, Galhano dos Santos R. Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction. Sustainability. 2021; 13(7):3717. https://doi.org/10.3390/su13073717

Chicago/Turabian Style

Fernandes, Frederico, Sandro Matos, Daniela Gaspar, Luciana Silva, Ivo Paulo, Salomé Vieira, Paula C. R. Pinto, João Bordado, and Rui Galhano dos Santos. 2021. "Boosting the Higher Heating Value of Eucalyptus globulus via Thermochemical Liquefaction" Sustainability 13, no. 7: 3717. https://doi.org/10.3390/su13073717

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