Technological Prospects of Biochar Derived from Viticulture Waste: Characterization and Application Perspectives

Veronica D’Eusanio (), Antonio Lezza, Biagio Anderlini, Daniele Malferrari, Marcello Romagnoli and Fabrizio Roncaglia ()
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Veronica D’Eusanio: Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
Antonio Lezza: Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
Biagio Anderlini: Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
Daniele Malferrari: Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
Marcello Romagnoli: Interdepartmental Centre H2-MORE, University of Modena and Reggio Emilia, Via Università 4, 41121 Modena, Italy
Fabrizio Roncaglia: Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy

Energies, 2024, vol. 17, issue 14, 1-14

Abstract: The increasing demand for sustainable agricultural practices aimed at reducing carbon dioxide emissions has driven the exploration of converting viticulture residues into biochar. This study investigates the potential technological applications of biochar as a filler for the production of electrically conductive composite materials, suitable to Bipolar Plate (BP) manufacturing. Grape seeds (GSs), defatted grape seeds (DGSs), wood stems (WSs), and whole grape seeds (WGSs) were converted into biochar samples through low-temperature (300 °C) pyrolysis for 3 or 24 h. The composition and thermal stability of biochar were evaluated through thermogravimetric analysis (TG), which provided valuable insights into interpreting the in-plane conductivity (IPC) values of the BP samples. Pyrolyzed GS and DGS biochar samples demonstrated enhanced thermal stability and conferred higher IPC values compared to WS counterparts. This indicates a clear correlation between the formation of carbon-rich structures during pyrolysis and overall electrical conductivity. In contrast, pyrolyzed WGSs produced BP samples with lower IPC values due to the presence of lipids, which were not effectively degraded by the low-temperature pyrolysis.

Keywords: biochar; biomass pyrolysis; viticulture waste; TGA; electro-conductive materials (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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