Recent works on that topic, checked for a Customer, include:
Archan, G., Anca-Couce, A., Buchmayr, M., Hochenauer, C., Gruber, J., Scharler, R., 2021. Experimental evaluation of primary measures for NOX and dust emission reduction in a novel 200 kW multi-fuel biomass boiler. Renewable Energy 170, 1186–1196. https://doi.org/10.1016/j.renene.2021.02.055
Meng, X., Ismail, T.M., Zhou, W., Yan, Y., Ren, X., Sun, R., Abd El-Salam, M., 2021. Numerical study of preheating primary air on pinewood and corn straw co-combustion in a fixed bed using Eulerian-Eulerian approach. Fuel 289, 119455. https://doi.org/10.1016/j.fuel.2020.119455
Meng, X., Zhou, W., Yan, Y., Ren, X., Ismail, T.M., Sun, R., 2020a. Effects of preheating primary air and fuel size on the combustion characteristics of blended pinewood and corn straw in a fixed bed. Energy 210, 118481. https://doi.org/10.1016/j.energy.2020.118481
Pérez-Orozco, R., Patiño, D., Porteiro, J., Larrañaga, A., 2020a. Flue Gas Recirculation during Biomass Combustion: Implications on PM Release. Energy Fuels 34, 11112–11122. https://doi.org/10.1021/acs.energyfuels.0c02086
Pérez-Orozco, R., Patiño, D., Porteiro, J., Rico, J.J., 2020b. The effect of primary measures for controlling biomass bed temperature on PM emission through analysis of the generated residues. Fuel 280, 118702. https://doi.org/10.1016/j.fuel.2020.118702
Raheem, D.G., Yilmaz, B., Kayahan, U., Özdoğan, S., 2020. Effect of Recycled Flue Gas Ratio on Combustion Characteristics of Lignite Oxy-Combustion in a Circulating Fluidized Bed. Energy Fuels 34, 14786–14795. https://doi.org/10.1021/acs.energyfuels.0c02464