Details

Autor(en) / Beteiligte

• Zheng, Yifan
• Ma, Dachao
• Liu, Zhuang
• Hong, Tiyu
• Zhang, Boyang
• Zhang, Qingnian
• Zhou, Zhou
• Wei, Jinye
• Zhong, Qisong
• Liu, Guozi
• Hu, Hongchang
• Fu, Lizhong
• Feng, Qingge

Titel

Solid biofuel preparation from eucalyptus bark by hydrothermal treatment and pelletization: Fuel properties, combustion behavior and ash slagging tendency

Ist Teil von

• Journal of the Energy Institute, 2024-06, Vol.114, Article 101636

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Eucalyptus bark (EB) is a promising biomass to replace fossil fuels, but its ash content is high and the energy density is particularly low. In this paper, it was proposed to upgrade EB to prepare solid biofuel by mild hydrothermal treatment (HTT) and pelletization. It was found that HTT could effectively remove troubling elements like Na, K, Zn, Mn, S, Cl, and P in EB. The remaining ashes tend to form higher melting point compounds, whose softening temperature (ST) and flow temperature (FT) increased from 1326 °C to 1399 °C and from 1348 °C to 1425 °C, respectively. The higher heating value of EB increased from 16.32 to 17.68 MJ/kg after HTT. The density, volume expansion, compressive strength, and durability of the bio-pellet fuel after HTT were all superior to raw EB. HTT and pelletization is a promising method to prepare solid biofuel from EB. [Display omitted] •Hydrothermal treatment can improve the combustion performance of eucalypt bark.•The influence of hydrothermal treatment on ash slagging behavior was evaluated.•Ash of eucalypt bark derived hydrochar have higher melting point.•Thermo-equilibrium modeling can effectively predict the ash slagging behavior.•Hydrochar pellet have better physical properties than eucalypt bark pellet.