The Effect of Oxygen Content Variation in the Combustion Atmosphere on Emission of Pollutants During the Combustion of Different Solid Fuels

This paper presents the research results on the influence of oxidant variation on emission of pollutants during the combustion of different solid fuels. Oxidant variation involves adjusting the oxygen content in the combustion atmosphere. The emission of key components of flue gases, NOx, SO2, CO2, and CO, was analyzed during the combustion of specified fuels in air stream (O2 = 21%) and oxygen-enriched stream (O2 = 27%) at a process temperature of 1050 ℃. Results are provided for three different fuels: brown coal, lignite coal, and waste wood biomass. The oxygen-enriched combustion technology, as part of oxy-fuel combustion technologies, is particularly interesting in terms of observing changes in CO2 emissions. The research results a substantial influence of oxygen content variation on pollutant emissions across all fuel types. A dedicated section discusses the implications for further carbon dioxide capture, storage, or utilization, including insights into Carbon Capture and Storage or Utilization technology, specifically focusing on the CO2 component.