Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce

E. Barta-Rajnai, L. Wang, Z. Sebestyén, Zs Barta, R. Khalil, O. Skreiberg, M. Grønli, E. Jakab, Z. Czégény

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

In this work the torrefaction of different parts of Norway spruce (stem wood, bark, and stump) was studied. Three different torrefaction temperatures were applied: 225, 275, and 300°C with 30 and 60 minutes isothermal periods. The untreated and torrefied biomass materials were characterized by thermogravimetric analysis (TGA). The TGA results are interpreted in terms of the chemical composition determined by the cellulose, hemicellulose and Klason lignin content. The alkali ion contents of the samples were measured by ICP-OES technique. It was found that the effect of torrefaction temperature was greater than the effect of residence time up to 275°C, while at 300°C the residence time had a significant influence on the composition of the torrefied samples due to the intensive decomposition of cellulose.

Original languageEnglish
Pages (from-to)551-556
Number of pages6
JournalEnergy Procedia
Volume105
DOIs
Publication statusPublished - Jan 1 2017
Event8th International Conference on Applied Energy, ICAE 2016 - Beijing, China
Duration: Oct 8 2016Oct 11 2016

Fingerprint

Thermogravimetric analysis
Cellulose
Wood
Lignin
Chemical analysis
Biomass
Decomposition
Temperature
Ions
Hot Temperature

Keywords

  • cellulose
  • hemicellulose
  • lignin
  • spruce
  • thermogravimetry
  • torrefaction

ASJC Scopus subject areas

  • Energy(all)

Cite this

Barta-Rajnai, E., Wang, L., Sebestyén, Z., Barta, Z., Khalil, R., Skreiberg, O., ... Czégény, Z. (2017). Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce. Energy Procedia, 105, 551-556. https://doi.org/10.1016/j.egypro.2017.03.355

Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce. / Barta-Rajnai, E.; Wang, L.; Sebestyén, Z.; Barta, Zs; Khalil, R.; Skreiberg, O.; Grønli, M.; Jakab, E.; Czégény, Z.

In: Energy Procedia, Vol. 105, 01.01.2017, p. 551-556.

Research output: Contribution to journalConference article

Barta-Rajnai, E, Wang, L, Sebestyén, Z, Barta, Z, Khalil, R, Skreiberg, O, Grønli, M, Jakab, E & Czégény, Z 2017, 'Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce', Energy Procedia, vol. 105, pp. 551-556. https://doi.org/10.1016/j.egypro.2017.03.355
Barta-Rajnai, E. ; Wang, L. ; Sebestyén, Z. ; Barta, Zs ; Khalil, R. ; Skreiberg, O. ; Grønli, M. ; Jakab, E. ; Czégény, Z. / Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce. In: Energy Procedia. 2017 ; Vol. 105. pp. 551-556.
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