Electron-beam flue-gas treatment for multicomponent air-pollution control

During coal combustion, different pollutants such as fly ash, sulfur oxides (SO2 and SO3), nitrogen oxides (NOx=NO+NO2) and volatile organic compounds (VOCs) are emitted. These pollutants are harmful to the environment and human health. Therefore different air-pollution-control technologies are used. Usually these technologies are designed for removing only a single pollutant. An integrated system for SO2, NOx and VOC simultaneous emission control is presented in the paper. The technology uses a high-energy electron-beam from an accelerator and ammonia to treat simultaneously SO2 and NOx, the obtained by-product can be used as a fertilizer. The industrial-demonstration plant at EPS Pomorzany in Szczecin is under optimization tests now. Moreover, the tests carried out with the pilot plant at EPS Kawêczyn have demonstrated the possibility of volatile-organic-compounds destruction and their final toxicity reduction.