Experimental study of SO2 and NOx emissions in fluidized bed oxy-fuel combustion

Oxyfuel combustion for CO2 capture in power plants

“…They reported that the highest SO 2 capture efficiency could be achieved by indirect desulphurization in the oxyfuel combustion conditions. They also observed relatively high (90%) SO 2 capture efficiency during oxyfuel combustion tests; and the sulphur capture efficiency also increased with increasing temperature (Bolea et al, 2012a;Lupianez et al, 2013).…”

Differences between combustion and oxy-combustion of corn and corn–rape blend using thermogravimetric analysis

“…Biomass combustion to obtain electricity or heating plays an important role in energy production. Moreover, biomass residues contain significantly less sulphur and nitrogen compared to fossil fuels, reducing SO x and NO x emissions [1,2].…”

Study on NO Emission in the Oxy-Fuel Combustion of Co-Firing Coal and Biomass in a Bubbling Fluidized Bed Combustor

“…This would weaken the oxidization process of the nitrogen-containing intermediate products to form NO. In addition, given that the oxygen diffusion in CO2 was slower (Lupiáñez et al 2013), the reduction of NO over char particles in the bed must be kinetically increased by elevating the temperature, because the kinetic increase was possibly much larger than the decrease, owing to the shortened gas residence time at elevated temperatures (Jones et al 1999). For these reasons, with coal mixed with 20% pine powder, the NO emission trends in Figs.…”

“…Many researchers have also used their own test designs to study the factors that affect NOX emissions. Some researchers believe that a temperature rise will promote NOX emissions (De las Obras-Loscertales et al 2015;Lupiáñez et al 2016;Zhang et al 2016), but others have observed the opposite outcome (Winter et al 1999;Lupiáñez et al 2013) in their experiments. In contrast, many researchers via studying the oxygen concentration reached a uniform conclusion that an oxidizing atmosphere promoted NOX formation (Zhu et al 2015).…”