| he homogeneous reaction mechanisms of nitrous oxide formation and decomposition in the fluidized bed of coal combustion were studied,indicating that the baths of nitrous oxide (N2O) formation from nitrogen contained in fuel mainly include: NCO+NO→N2O+CO and NH+NO→N2O+H;and the main reaction of N2O decomposition are:N2O+H→N2+OH. An analysis was also made for the effects of the factors such as compeition of fuel-bounded nitrogen compounds in volatiles, kinds of coal, temperature in the fluidized bed, coefficient of excess air, number of singes, and the combustion pattern in a single sarge, on the emission of N2O from the fluidized bed coal combustor. |
