Radiation induced scavenging of NOx, SO2, H2S from exhaust gases

The theoretical model of exhaust gases radiation induced oxidation was developed. NO, SO2 and H2S concentrations curves vs dose calculated by use of this model for mixtures containing N2 (80.5%), O2 (11%), H2O (8.4%), NO (100-600 ppm), SO2 (150-500 ppm) and H2S (300-1000 ppm) have been obtained. It has been shown that NO and SO2 conversion reactions with acids formation go simultaneously with oxidizing reaction of H2S giving SO2 as an intermediate substance. These processes were evaluated for different initial concentrations of NO, SO2 and H2S. Data established by our simulation calculations show that the electron beam process can be judged as a promising technology for simultaneous removal of SO2, NO and H2S from exhaust gases. (Author)