The targeted biomass power plant with capacity of 2×12 MW was not up to the standard for the flue gas denitration.An analysis of technical renovation on flue gas denitration system was conducted in this paper for the sake of this. The boiler for the plant was transformed into a differential fluidized bed boiler with the SNCR denitration system remaining the same as before which saves a great amount of money for the investment. Along with this

a set of ozone denitration unit or NaClO2/NaClO denitration system was installed at the outlet of the draft. After the comparison on the principles

working processes

cost and investment between the above-mentioned two plans

the plan of NaClO2/NaClO denitration is recommended for this renovation on flue gas denitration program.