Electron beam treatment of high NOx concentration off-gases

High concentration of NOx removal from simulated off-gases was investigated using electron beam (EB) technology. Simulated off-gases were prepared by combusting Polish light oil or nature gas with addition of NO from a NO gas cylinder. Irradiation was carried out under a ILU-6 accelerator. It was found that removal efficiency of NOx was influenced by inlet concentration of NO, temperature, SO2 concentration, absorbed dose and irradiation dose rate. Methods of enhancing NOx removal efficiency with additives using EB were also discussed.

► High concentrations of NOx removal from off-gases were studied under electron beam (EB) irradiation.
► Removal efficiency of NOx was increased with inlet concentration of NO, temperature, SO2 concentration and absorbed dose.
► Removal efficiency of NOx was influenced by irradiation dose rate of EB.
► Methods of enhancing NOx removal efficiency with additives using EB were also discussed.