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

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

Renewable Energy, 2021, vol. 170, issue C, 1186-1196

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.

Keywords: Biomass combustion; Dust reduction; Emission reduction; Fuel flexibility; Furnace; NOX reduction (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:170:y:2021:i:c:p:1186-1196

DOI: 10.1016/j.renene.2021.02.055

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