Reactivity of cellulose during hydrothermal carbonization of lignocellulosic biomass.

Journal article


Volpe, M., Messineo, A., Makela, M., Barr, M. R., Volpe, R., Corrado, C. and Fiori, L. (2020). Reactivity of cellulose during hydrothermal carbonization of lignocellulosic biomass. Fuel Processing Technology. 206, p. 106456. https://doi.org/10.1016/j.fuproc.2020.106456
AuthorsVolpe, M., Messineo, A., Makela, M., Barr, M. R., Volpe, R., Corrado, C. and Fiori, L.
Abstract

Hydrothermal carbonization (HTC) of pure cellulose (CE) and birchwood (BW) samples was carried out at temperatures between 160 and 280 °C, 0.5 h residence time and biomass-to-water ratio 1:5, to investigate the reactivity of cellulose in lignocellulosic biomass. Thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR) showed that the CE samples remained unaltered at temperatures up to 220 °C, but were significantly decomposed at 230 °C producing a thermal recalcitrant aromatic and high energy-dense material. FTIR showed that dehydration and aromatization reactions occurred at temperature equal or higher than 230 °C for the CE samples while a similar increase in aromatization for the BW hydrochars was evident only at temperatures equal or higher than 260 °C. Acid hydrolysis, TGA and FTIR suggested that a higher thermal resistance of naturally occurring cellulose in BW (when compared to CE sample) could be related to a ‘protecting shield’ offered by interlinked lignin in the plant matrix.

KeywordsHydrothermal carbonization; Solid biofuel; Cellulose reactivity; Birchwood; Acid hydrolysis
Year2020
JournalFuel Processing Technology
Journal citation206, p. 106456
PublisherElsevier
ISSN1873-7188
Digital Object Identifier (DOI)https://doi.org/10.1016/j.fuproc.2020.106456
Web address (URL)https://www.sciencedirect.com/science/article/pii/S0378382020302162
Publication dates
PrintSep 2020
Print28 Apr 2020
Publication process dates
Accepted20 Apr 2020
Deposited29 Aug 2023
Accepted author manuscript
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File Access Level
Open
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