Preprint Communication Version 1 Preserved in Portico This version is not peer-reviewed

Water Resistance of Torrefied Wood Pellets Prepared by Two Methods

Takahiro Yoshida
* ORCID logo ,
Katsushi Kuroda
,
Daisuke Kamikawa
,
Yoshitaka Kubojima
,
Takashi Nomura
,
Hiroki Watada
,
Tetsuya Sano
,
Seiji Ohara
Version 1 : Received: 29 September 2020 / Approved: 30 September 2020 / Online: 30 September 2020 (10:15:52 CEST)
Version 2 : Received: 5 October 2020 / Approved: 5 October 2020 / Online: 5 October 2020 (16:39:37 CEST)

How to cite: Yoshida, T.; Kuroda, K.; Kamikawa, D.; Kubojima, Y.; Nomura, T.; Watada, H.; Sano, T.; Ohara, S. Water Resistance of Torrefied Wood Pellets Prepared by Two Methods. Preprints 2020, 2020090735. https://doi.org/10.20944/preprints202009.0735.v1 Yoshida, T.; Kuroda, K.; Kamikawa, D.; Kubojima, Y.; Nomura, T.; Watada, H.; Sano, T.; Ohara, S. Water Resistance of Torrefied Wood Pellets Prepared by Two Methods. Preprints 2020, 2020090735. https://doi.org/10.20944/preprints202009.0735.v1

Abstract

To examine the hydrophobicity of torrefied wood fuel, the water resistances of torrefied pellets prepared by two different methods were evaluated using exposure tests under indoor and outdoor conditions. Torrefied pellets from the xylem of Japanese cedar (Sugi, Cryptomeria japonica) and oak (Konara, Quercus serrata) were prepared by two methods: the torrefaction of wood chips followed by pelletization and the pelletization of wood chips followed by torrefaction. It was found that the pellets prepared by pelletization followed by torrefaction had much lower moisture levels than those prepared by the other method and they showed almost no change in diameter after an outdoor weathering test. These characteristics are unique and indicate that the pellets can be applied not only for industrial use but also for residential and commercial purposes.

Keywords

wood pellet; torrefaction; hydrophobicity; water resistance

Subject

Engineering, Automotive Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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