Computer simulation of the kinetics of high temperature radiation induced reduction of NO

The impact of ionizing radiation on the kinetics of the thermal De-NOx proc ess was investigated by computer simulation. The NO reduction process was s timulated by radical and ion reactions. The calculation model included 30 d ifferent molecules and 169 chemical reactions. It was found that the combin ed process operates in a broader temperature window than the thermal De-NOx process. The reduction is practically completed in about 0.1 s even at 800 K, where the thermal reaction is too slow to be used. The mechanism of the combined process and the influence of dose rate on the kinetics of the com bined process are discussed. (C) 1999 Elsevier Science Ltd. All rights rese rved.