Assessment of eucalypts wood lignin content by analytical pyrolysis, comparison with Klason and total lignin contents
Analytical pyrolysis can be used to determine the lignin content (Py-lignin) in eucalypt woods with a precision (0.37%) similar to the wet reference methods. Good correlations were found between the Py-lignin results and Klason (94%) and total lignin contents (95%). Besides apparent species-specific deviations, an average difference of 1.3% compared to the total lignin content was observed, well below the 3.9% difference reported for softwoods (guaiacyl lignin). Since Eucalyptus has more syringyl (S) than guaiacyl (G) units, this suggests that S units are overestimated in comparison to G units by analytical pyrolysis, in line with previous findings for different degradation methods, including pyrolysis.
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| Principais autores: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo biblioteca |
| Idioma: | eng |
| Publicado em: |
Taylor and Francis
2021-10
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| Assuntos: | Eucalyptus, Lignins, Pyrolysis, Wood, Ligninas, Pirólisis, Madera, Eucalyptus genus, |
| Acesso em linha: | http://hdl.handle.net/20.500.12123/13693 https://www.tandfonline.com/doi/abs/10.1080/02773813.2021.1986071 https://doi.org/10.1080/02773813.2021.1986071 |
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