AN EXPERIMENTAL STUDY ON REMOVAL OF NO_x IN FLUE GAS AT THE NONEQUILIBRIUM PLASMA

摘要

Removal of nitrogen oxides (NO_x) in flue gas by means of nonequilibrium plasma technology is a very prospect and attractive method. As the nonequilibrium plasma micro discharges can generate a powerful energy flux, imparted to the flue gas the molecules and atoms of pollutants are motivated and decomposed, and then NO_x in the flue gas are decomposed and conversed in the particular conditions. Based on nonequilibrium plasma in combination with catalytic principle an experimental investigation on NO_x decomposition and conversion with Al_2O_3 catalysts was carried out and the NO_x removal rate up to 95 percent was obtained. The NO_x decomposition and conversion principle with Al_2O_3 catalysts was also discussed.