NO removal by reducing agents and additives in the selective non-catalytic reduction (SNCR) process.
The effect of the additives on the selective non-catalytic reduction (SNCR) reaction has been determined in a three-stage laboratory scale reactor. The optimum reaction temperature is lowered and the reaction temperature window is widened with increasing concentrations of the gas additives (CO, CH4). The optimum reaction temperature is lowered and the maximum NO removal efficiency decreases with increasing the concentration of alcohol additives (CH3OH, C2H5OH). The addition of phenol lowers the optimum reaction temperature about 100-150 degrees C similar to that of the toluene addition. The volatile organic compounds (VOCs: C6H5OH, C7H8) can be utilized in the SNCR process to enhance NO reduction and removed at the same time. A previously proposed simple kinetic model can successfully apply the NO reduction by NH3 and the present additives.
Department of Chemical and Biomolecular Engineering, Energy and Environment Research Center, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Sang Wook
SW
Bae
Seon Ah
SA
Roh
Sang Done
SD
Kim
D000393:Air Pollutants / Q000032:analysis*; D000438:Alcohols / Q000737:chemistry*; D017745:Incineration / Q000592:standards*; D007700:Kinetics; D008956:Models, Chemical; D008961:Models, Structural; D009589:Nitrogen Oxides / Q000032:analysis*; D010084:Oxidation-Reduction; D019163:Reducing Agents / Q000737:chemistry*; D013696:Temperature; D014835:Volatilization
D000393:Air Pollutants; D000438:Alcohols; D009589:Nitrogen Oxides; D019163:Reducing Agents