This paper presents the research results of the effect of using calcium oxide and potassium permanganate on the combustion of pellets from wheat bran and beet pulp. The measurements were performed in the technical laboratory of the Centre of Energy Utilization of Non-Traditional Energy Sources in Ostrava. The research examined the effect of the use of chemical substances on the amount of air pollutants from biomass thermal conversion in a low-power boiler and the process temperature. First, we performed technical and elementary analyses of agricultural waste. The raw material was then comminuted, mixed with a selected additive, pelletized, and finally burned in a low-power boiler. The additive was added in three proportions: 1:20, 1:10, and 1:6.67 (i.e., 15%) relative to the fuel weight. The combustion process efficiency was measured using a flue gas analyzer and three thermocouples attached to the data recorder. From the measurement results, we were able to determine the percentage reduction of pollutant emissions into the atmosphere (CO, NOx, and SO2) due to the use of additives. Because emission standards are becoming increasingly stringent and fuel and energy prices are rising, the results presented in this article may be useful to agri-food processing plants that want to manage these materials thermally.

ENET Centre VSB Technical University of Ostrava 17 Listopadu 2172 15 708 00 Ostrava Czech Republic

Faculty of Mechanical Engineering Koszalin University of Technology Racławicka Str 15 17 75 620 Koszalin Poland

Institute of Agricultural Engineering Wroclaw University of Environmental and Life Sciences 51 630 Wroclaw Poland

Nanotechnology Centre VSB Technical University of Ostrava 17 Listopadu 2172 15 708 00 Ostrava Czech Republic

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