Research on Dynamic Modeling of SCR Denitrification System in Thermal Power Plant
Denitration reaction model is the basis of SCR denitration system design and control optimization.Therefore,the dynamic model of selective catalytic reduction(SCR)system should be constructed based on the denitration reaction mechanism,and the adsorption desorption of reactants NH3 and NOx and the reaction between them should be treated separately,and the model should be verified by the actual operation data.The results show that the model accurately reflects the dynamic characteristics of the SCR system.In addition,the effects of temperature and n(NH3):n(NOx)on SCR reaction were further analyzed.The simulation results show that when the concentration of NOx and NH3 is constant,the surface coverage and denitration efficiency increase with the increase of temperature,and both indicators increased with the increase of the ratio of the"amount of substances",while ammonia escape did not change.
万方数据
维普
