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Synergy effects of co-firing wooden biomass with Bosnian coal

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  • Kazagic, A.
  • Smajevic, I.

Abstract

The paper presents synergy effects found during the co-firing of wooden biomass with Bosnian coal types in an experimental reactor. The co-firing tests used spruce sawdust in combination with Kakanj brown coal and a lignite blend of Dubrave lignite and Sikulje lignite. Coal/biomass mixtures at 93:7 and 80:20wt% were fired in a 20kW pulverized fuel (PF) entrained flow reactor. Over 20 test trials were performed to investigate ash deposition behavior and emissions under different conditions, varying the process temperature, excess air ratio, and air distribution. During the tests, the temperature in the experimental facility varied between 880 and 1550°C, while the excess air ratio varied between 0.95 and 1.4. There was sufficient combustion efficiency under all co-firing regimes, with burning out at 96.5–99.5% for brown coal–sawdust co-firing. Synergy effects were detected for all co-firing regimes with regard to SO2 emission, as well for slagging at the process temperature suitable for the slag tap furnace. CO2 emissions were also calculated for the blends tested and significant reductions of CO2 found, due to the very low ranking of Bosnian coals.

Suggested Citation

  • Kazagic, A. & Smajevic, I., 2009. "Synergy effects of co-firing wooden biomass with Bosnian coal," Energy, Elsevier, vol. 34(5), pages 699-707.
    • Handle: RePEc:eee:energy:v:34:y:2009:i:5:p:699-707
    DOI: 10.1016/j.energy.2008.10.007
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    Cited by:

    1. Oladejo, Jumoke M. & Adegbite, Stephen & Pang, Cheng Heng & Liu, Hao & Parvez, Ashak M. & Wu, Tao, 2017. "A novel index for the study of synergistic effects during the co-processing of coal and biomass," Applied Energy, Elsevier, vol. 188(C), pages 215-225.
    2. Dong, Leilei & Alexiadis, Alessio, 2023. "Simulation of char burnout characteristics of biomass/coal blend with a simplified single particle reaction model," Energy, Elsevier, vol. 264(C).
    3. Chen, Jiacong & He, Yao & Liu, Jingyong & Liu, Chao & Xie, Wuming & Kuo, Jiahong & Zhang, Xiaochun & Li, Shoupeng & Liang, Jialin & Sun, Shuiyu & Buyukada, Musa & Evrendilek, Fatih, 2019. "The mixture of sewage sludge and biomass waste as solid biofuels: Process characteristic and environmental implication," Renewable Energy, Elsevier, vol. 139(C), pages 707-717.
    4. Yin, Chungen, 2020. "Development in biomass preparation for suspension firing towards higher biomass shares and better boiler performance and fuel rangeability," Energy, Elsevier, vol. 196(C).
    5. Kuznetsov, G.V. & Yankovsky, S.A. & Tolokolnikov, A.A. & Zenkov, A.V. & Cherednik, I.V., 2020. "Conditions and characteristics of mixed fuel granules ignition based on coal and finely dispersed wood," Energy, Elsevier, vol. 194(C).
    6. Kazagic, Anes & Merzic, Ajla & Redzic, Elma & Music, Mustafa, 2014. "Power utility generation portfolio optimization as function of specific RES and decarbonisation targets – EPBiH case study," Applied Energy, Elsevier, vol. 135(C), pages 694-703.
    7. Chouchene, Ajmia & Jeguirim, Mejdi & Khiari, Basma & Zagrouba, Fathi & Trouvé, Gwénaëlle, 2010. "Thermal degradation of olive solid waste: Influence of particle size and oxygen concentration," Resources, Conservation & Recycling, Elsevier, vol. 54(5), pages 271-277.
    8. Luan, Chao & You, Changfu & Zhang, Dongke, 2014. "Composition and sintering characteristics of ashes from co-firing of coal and biomass in a laboratory-scale drop tube furnace," Energy, Elsevier, vol. 69(C), pages 562-570.
    9. Konstantin Slyusarsky & Anton Tolokolnikov & Artur Gubin & Albert Kaltaev & Alexander Gorshkov & Askar Asilbekov & Kirill Larionov, 2023. "Ignition and Emission Characteristics of Waste Tires Pyrolysis Char Co-Combustion with Peat and Sawdust," Energies, MDPI, vol. 16(10), pages 1-16, May.
    10. Aime Hilaire Tchapda & Sarma V. Pisupati, 2014. "A Review of Thermal Co-Conversion of Coal and Biomass/Waste," Energies, MDPI, vol. 7(3), pages 1-51, February.
    11. Sahu, S.G. & Chakraborty, N. & Sarkar, P., 2014. "Coal–biomass co-combustion: An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 575-586.
    12. Royo, Javier & Sebastián, Fernando & García-Galindo, Daniel & Gómez, Maider & Díaz, Maryori, 2012. "Large-scale analysis of GHG (greenhouse gas) reduction by means of biomass co-firing at country-scale: Application to the Spanish case," Energy, Elsevier, vol. 48(1), pages 255-267.

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