Prediction of emission gas concentration from pressurized fluidized bed combustion (PFBC) of coal under dynamic operation conditions

摘要

Emission of CO, NOx, N_2O and SO_2 from a 71 MW PFBC was continuously observed for 8 days while the plant load, the level of coal load, the concentration of emission gases, total pressure, and temperature varied dynamically. Prediction of concentrations of such gases are attempted in this paper to prove the high accuracy of a series of ASH~TR equations proposed in previous papers ([1] Tsuji Y, Tazawa K, Abe R, Sasatsu H, Harada T.Behavior and estimation of nitrogen oxides emission in 71 Mwe PFBC boiler.