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Experimental evaluation of primary measures for NOX and dust emission reduction in a novel 200 kW multi-fuel biomass boiler

Author

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  • Archan, Georg
  • Anca-Couce, Andrés
  • Buchmayr, Markus
  • Hochenauer, Christoph
  • Gruber, Johann
  • Scharler, Robert

Abstract

The aim of this work is to utilize various biogenic fuels without ash slagging and to significantly reduce NOX and particulate matter emissions in comparison to modern combustion technologies. For this purpose, a novel small-scale multi-fuel biomass grate furnace technology was developed and experimentally investigated. It employs a low oxygen concentration in the fixed-bed and a double air staging, including the supply of flue gas recirculation. In this way slagging is prevented on the grate, reducing the release of ash-forming volatiles, NOX emissions are minimized in the reduction zone and an efficient flue gas burnout is achieved in the tertiary zone. Wood pellets and chips as well as miscanthus briquettes were investigated.

Suggested Citation

  • Archan, Georg & Anca-Couce, Andrés & Buchmayr, Markus & Hochenauer, Christoph & Gruber, Johann & Scharler, Robert, 2021. "Experimental evaluation of primary measures for NOX and dust emission reduction in a novel 200 kW multi-fuel biomass boiler," Renewable Energy, Elsevier, vol. 170(C), pages 1186-1196.
    • Handle: RePEc:eee:renene:v:170:y:2021:i:c:p:1186-1196
    DOI: 10.1016/j.renene.2021.02.055
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    Cited by:

    1. Steiner, Maximilian & Anca-Couce, Andrés & Hochenauer, Christoph & Buchmayr, Markus & Scharler, Robert, 2024. "Relevance and prediction of N2O in small-scale multi-fuel biomass furnaces using primary NOx reduction measures," Renewable Energy, Elsevier, vol. 229(C).
    2. César Álvarez-Bermúdez & Sergio Chapela & Luis G. Varela & Miguel Ángel Gómez, 2021. "CFD Simulation of an Internally Cooled Biomass Fixed-Bed Combustion Plant," Resources, MDPI, vol. 10(8), pages 1-19, July.
    3. Zadravec, Tomas & Rajh, Boštjan & Kokalj, Filip & Samec, Niko, 2021. "Influence of air staging strategies on flue gas sensible heat losses and gaseous emissions of a wood pellet boiler: An experimental study," Renewable Energy, Elsevier, vol. 178(C), pages 532-548.
    4. Stanislav Chicherin & Andrey Zhuikov & Petr Kuznetsov, 2024. "The Return of Coal-Fired Combined Heat and Power Plants: Feasibility and Environmental Assessment in the Case of Conversion to Another Fuel or Modernizing an Exhaust System," Sustainability, MDPI, vol. 16(5), pages 1-15, February.

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