NH3-based SNCR of NOx : Experimental and Simulation

NH3 SNCR을 이용한 NOx 제거 : 실험 및 모사

  • Cha, Jin Sun (School of Environmental Engineering, University of Seoul) ;
  • Park, Sung Hoon (Department of Environmental Engineering, Sunchon National University) ;
  • Jeon, Jong-Ki (Department of Chemical Engineering, Kongju National University) ;
  • Park, Young-Kwon (School of Environmental Engineering, University of Seoul)
  • 차진선 (서울시립대학교 환경공학부) ;
  • 박성훈 (순천대학교 환경공학과) ;
  • 전종기 (공주대학교 화학공학부) ;
  • 박영권 (서울시립대학교 환경공학부)
  • Received : 2011.05.24
  • Accepted : 2011.07.03
  • Published : 2011.08.10


In this study, effects of temperature, NSR, and oxygen concentration on the $NO_x$ removal efficiency of an SNCR process were investigated experimentally as well as numerically using CHEMKIN-II program. The NO removal efficiency increased with the reactor temperature under oxygen-free condition, whereas when the oxygen concentration was 4%, the NO removal efficiency showed a maximum value at $900{\sim}950^{\circ}C$. The pressure of oxygen was shown to enhance the NO removal at low temperature. Regardless of the oxygen concentration, the NO removal efficiency increased with NSR. The temperature and NSR-dependencies of the NO removal efficiency predicted by CHEMKIN-II simulations were similar to that of the experimental results.


  1. J. C. Choi, C. H. Cho, K. E. Jeong, J. K. Jeon, J. H. Yim, and Y. K. Park, J. Kor. Ind. Eng. Chem., 19, 92 (2008).
  2. M. T. Javed, N. Irfan, and B. M. Gibbs, J. Env. Manage., 83, 251 (2007). https://doi.org/10.1016/j.jenvman.2006.03.006
  3. J .A. Miller and C. T. Bowman, Prog. Energy Combust. Sci., 15, 287 (1989). https://doi.org/10.1016/0360-1285(89)90017-8
  4. J. A. Silver and C. E. Kolb, J. Phys. Chem., 86, 3240 (1982). https://doi.org/10.1021/j100213a033
  5. R. K. Lyon and J. E. Hardy, Ind. Eng. Chem. Fundam., 25, 19 (1986). https://doi.org/10.1021/i100021a003
  6. P. Lodder and J. B. Lefers, Chem. Eng. J., 30, 161, (1985). https://doi.org/10.1016/0300-9467(85)80026-5
  7. R. K. Lyon, Int. J. Chem. Kinet., 8, 315, (1976). https://doi.org/10.1002/kin.550080213