International Scientific Journal

Thermal Science - Online First

online first only

Selective non-catalytic denitrification of biomass combustion flue gases (synthetic mixture)

Despite many benefits of agricultural biomass utilization as an energy source, there are certain disadvantages such as the possible high emission of nitrogen oxides (NOx). NOx emission represents one of the key challenges for agricultural biomass use as a fuel. The experimental denitrification chamber was used to evaluate the impact of initial NO content, NH3:NO molar ratio, flue gas temperature, and the temperature difference between two denitrification chamber sections on NOx reduction using ammonia aqueous solution. The optimization of experimental conditions was done in the NO concentration range from 200 to 800 ppm, NH3:NO molar ratios from 0.31 to 3 and second chamber section temperature range from 770 to 867°C. The denitrification process under controlled conditions is the starting point for the optimization of the secondary denitrification technique of selective non-catalytic reduction (SNCR) process on real-scale plants combusting biomass or any other fuels with increased NOx emission.
PAPER REVISED: 2023-01-31
PAPER ACCEPTED: 2023-02-05
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