Combined DeSB(x)/DeNO(x) reactions on a natural manganese ore in a fluidized bed reactor

Simultaneous removal of SO, and NO from simulated gas was investigated usin g a continuously operating fluidized bed reactor with variables of gas velo city, sorbent/catalyst feeding rate, aspect ratio (L/ D), temperature, sorb ent/catalyst size. NMO (natural manganese ore) was used as a sorbent and ca talyst trf size from 0.715 mm to 0.194 mm in diameter. Particle size, aspec t ratio, and sorbent feeding rate did not affect the reduction of NOx with ammonia, and NO removal efficiency was about 94% at 350 degreesC, gas.' vel ocity of 0.204 m/sec, L/D = 1.0, SO removal efficiency was affected by temp erature, gas velocity, sorbent/catalyst feeding rate, aspect ratio and sorb ent/catalyst size and it was about 92% at 450 degreesC, gas velocity of 0.2 04 m/sec, sorbent/catalyst feeding rate of 8.54 g/min, L/D = 1.0.