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Experimental Study on Dry Torrefaction of Beech Wood and Miscanthus

Author

Listed:
  • Eyerusalem M. Gucho

    (Department Energy Technology, University of Twente, 7500 AE Enschede, The Netherlands)

  • Khurram Shahzad

    (Centre for Coal Technology, University of the Punjab, Lahore 54700, Pakistan)

  • Eddy A. Bramer

    (Department Energy Technology, University of Twente, 7500 AE Enschede, The Netherlands)

  • Niaz A. Akhtar

    (University of Engineering & Technology, Taxila 47080, Pakistan)

  • Gerrit Brem

    (Department Energy Technology, University of Twente, 7500 AE Enschede, The Netherlands)

Abstract

Torrefaction is a thermochemical pre-treatment process for upgrading the properties of biomass to resemble those of fossil fuels such as coal. Biomass properties of particular interest are chemical composition, physical property and combustion characteristics. In this work, torrefaction of beech wood and miscanthus ( sinensis ) was carried out to study the influence of torrefaction temperature (240–300 °C) and residence time (15–150 min) on the aforementioned properties of the biomass. Results of the study revealed that torrefaction temperature has a significant influence on mass and energy yields, whereas the influence of the residence time becomes more apparent for the higher torrefaction temperatures (>280 °C). Torrefied miscanthus resulted in higher energy densification compared to beech wood for a residence time of 30 min. A significant improvement in grindability of the torrefied beech wood was obtained even for lightly torrefied beech wood (at 280 °C and 15 min of residence time). Observation from the combustion study showed that the ignition temperature is slightly affected by the torrefaction temperature. As a whole, the torrefaction temperature determines the characteristics of the torrefied fuel compared to other process parameters like residence time. Furthermore, with optimal process conditions, torrefaction produces a solid fuel with combustion reactivity and porosity comparable to raw biomass, whereas grindability and heating value are comparable to low quality coal.

Suggested Citation

  • Eyerusalem M. Gucho & Khurram Shahzad & Eddy A. Bramer & Niaz A. Akhtar & Gerrit Brem, 2015. "Experimental Study on Dry Torrefaction of Beech Wood and Miscanthus," Energies, MDPI, vol. 8(5), pages 1-21, May.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:5:p:3903-3923:d:49184
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    Citations

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    Cited by:

    1. Adrian Knapczyk & Sławomir Francik & Marcin Jewiarz & Agnieszka Zawiślak & Renata Francik, 2020. "Thermal Treatment of Biomass: A Bibliometric Analysis—The Torrefaction Case," Energies, MDPI, vol. 14(1), pages 1-31, December.
    2. Mateusz Jackowski & Łukasz Niedźwiecki & Krzysztof Mościcki & Amit Arora & Muhammad Azam Saeed & Krystian Krochmalny & Jakub Pawliczek & Anna Trusek & Magdalena Lech & Jan Skřínský & Jakub Čespiva & J, 2021. "Synergetic Co-Production of Beer Colouring Agent and Solid Fuel from Brewers’ Spent Grain in the Circular Economy Perspective," Sustainability, MDPI, vol. 13(18), pages 1-17, September.
    3. María Pilar González-Vázquez & Roberto García & Covadonga Pevida & Fernando Rubiera, 2017. "Optimization of a Bubbling Fluidized Bed Plant for Low-Temperature Gasification of Biomass," Energies, MDPI, vol. 10(3), pages 1-16, March.
    4. Ong, Hwai Chyuan & Yu, Kai Ling & Chen, Wei-Hsin & Pillejera, Ma Katreena & Bi, Xiaotao & Tran, Khanh-Quang & Pétrissans, Anelie & Pétrissans, Mathieu, 2021. "Variation of lignocellulosic biomass structure from torrefaction: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
    5. Hao Luo & Lukasz Niedzwiecki & Amit Arora & Krzysztof Mościcki & Halina Pawlak-Kruczek & Krystian Krochmalny & Marcin Baranowski & Mayank Tiwari & Anshul Sharma & Tanuj Sharma & Zhimin Lu, 2020. "Influence of Torrefaction and Pelletizing of Sawdust on the Design Parameters of a Fixed Bed Gasifier," Energies, MDPI, vol. 13(11), pages 1-19, June.
    6. Krochmalny, Krystian & Niedzwiecki, Lukasz & Pelińska-Olko, Ewa & Wnukowski, Mateusz & Czajka, Krzysztof & Tkaczuk-Serafin, Monika & Pawlak-Kruczek, Halina, 2020. "Determination of the marker for automation of torrefaction and slow pyrolysis processes – A case study of spherical wood particles," Renewable Energy, Elsevier, vol. 161(C), pages 350-360.
    7. Bach, Quang-Vu & Skreiberg, Øyvind, 2016. "Upgrading biomass fuels via wet torrefaction: A review and comparison with dry torrefaction," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 665-677.
    8. Gholizadeh, Mortaza & Hu, Xun & Liu, Qing, 2019. "A mini review of the specialties of the bio-oils produced from pyrolysis of 20 different biomasses," Renewable and Sustainable Energy Reviews, Elsevier, vol. 114(C), pages 1-1.
    9. Mahmudul Hasan & Yousef Haseli & Ernur Karadogan, 2018. "Correlations to Predict Elemental Compositions and Heating Value of Torrefied Biomass," Energies, MDPI, vol. 11(9), pages 1-15, September.
    10. Tharaka Rama Krishna C. Doddapaneni & Linnar Pärn & Timo Kikas, 2022. "Torrefaction of Pulp Industry Sludge to Enhance Its Fuel Characteristics," Energies, MDPI, vol. 15(17), pages 1-15, August.
    11. Li, Shu-Xian & Zou, Jin-Ying & Li, Ming-Fei & Wu, Xiao-Fei & Bian, Jing & Xue, Zhi-Min, 2017. "Structural and thermal properties of Populus tomentosa during carbon dioxide torrefaction," Energy, Elsevier, vol. 124(C), pages 321-329.
    12. Xin, Shanzhi & Mi, Tie & Liu, Xiaoye & Huang, Fang, 2018. "Effect of torrefaction on the pyrolysis characteristics of high moisture herbaceous residues," Energy, Elsevier, vol. 152(C), pages 586-593.
    13. Jan Hari Arti Khalsa & Diana Leistner & Nadja Weller & Leilani I. Darvell & Ben Dooley, 2016. "Torrefied Biomass Pellets—Comparing Grindability in Different Laboratory Mills," Energies, MDPI, vol. 9(10), pages 1-15, October.
    14. Atimtay, Aysel & Yurdakul, Sema, 2020. "Combustion and Co-Combustion characteristics of torrefied poultry litter with lignite," Renewable Energy, Elsevier, vol. 148(C), pages 1292-1301.
    15. Sher, Farooq & Yaqoob, Aqsa & Saeed, Farrukh & Zhang, Shengfu & Jahan, Zaib & Klemeš, Jiří Jaromír, 2020. "Torrefied biomass fuels as a renewable alternative to coal in co-firing for power generation," Energy, Elsevier, vol. 209(C).

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