Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Characteristics of NOx Reduction Using V2O5 - TiO2Catalyst Coated on Ceramic Foam Filters

V2O5 - TiO2 촉매 담지된 세라믹 폼 필터를 이용한 NOx 제거 특성

  • 한요섭 (한양대학교 지구환경시스템공학과) ;
  • 김현중 ((주)마이크로포어) ;
  • 박재구 (한양대학교 지구환경시스템공학과)
  • Published : 2004.12.01
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Abstract

Ceramic foams prepared from silica -clay were coated with TiO$_2$ and V$_2$O$_{5}$ catalysts for selective catalytic reduction of NOx with NH$_3$. The effects of V$_2$O$_{5}$ loading, reaction temperature, space velocity, and oxygen content on NOx reduction with NH$_3$ were mainly investigated. Also, the NOx reduction characteristics of V$_2$O$_{5}$ and V$_2$O$_{5}$ -TiO$_2$ filters were compared when sulfur dioxide exists. From the results, the optimal NOx reduction with the maximum reduction efficiency of 91 % could be performed under the condition with V$_2$O$_{5}$ loading 6.0 wt. %, reaction temperature 35$0^{\circ}C$, space velocity 6,000h$^{-1}$ , and oxygen content 5%. And, the V$_2$O$_{5}$ -TiO$_2$ filters have shown higher NOx reduction efficiency and acid resistance against sulfur dioxide than the V$_2$O$_{5}$ filters.

Keywords

References

  1. Bosch, H. and F. Janssen (1988) Catalytic Reduction of Nitrogen Oxides, Catal. Today, 2, 369
  2. Kim, M.H. and I.S. Nam (2001) Water Tolerance of DeNOx SCR Catalysts Using Hydrocarbons: Finding, Improvements and Challenges, Korean J. Chem,. Eng., 18, 725.
  3. Heck, R.M. (1999) Catalytic Abatement of Nitrogen OxidesStationary Applications, Catal. Today, 53, 519-523
  4. Lee, I.Y., D.W. Kim, J.B. Lee, and K.O. Yoo(2002) A Practical Scale Evaluation of Sulfated $V_2O_5/TiO_2$ Catalyst from Metatitanic Acid for Selective Catalytic Reduction of NO by TEX>$NH_3$, Chem. Eng. J., 4000, 1-6
  5. Rajadhyaksha, R.A., G. Hausinger, H. Zeilinger, A. Ramstetter, H. Schmelz, and H. Knozinger (1989) Vanadia Supported on Titania-Silica; Physical Characterization and Activity for the Selective Reduction on Nitric Oxide, Appl. Catal., 51,67-79
  6. Hadjiivanov, K.I. and D.G. Klissurski (1991) Surface Chemistry of Titania(Anatase) and Titania-Supported Catalysts, Chem. Soc. Rev., 61
  7. Wauthoz, P., M. Ruwet, T. Machej, and P. Grange (1991) Influence of the Preparation Method on the $V_2O_5/TiO_2/SiO_2$ Catalysts in Selective Catalytic Reduction of Nitric Oxide with Ammonia, Appl. Catal., 69, 149-167
  8. Economidis, N., R.F. Coil, and P.G. Smirniotis (1998) Catalytic Performance of $Al_2O_3/SiO_2/TiO_2$ Loaded with $V_2O_5$ for the Selective Catalytic Reduction of NOx with Ammonia, Catal' Today., 40, 27-37
  9. Clarebout, G., M. Ruwet, H. Matralis, and P. Grange (1991) Selective Catalytic Reduction of Nitric Oxide with Ammonia on Vanadium Oxide Catalysts Supported on Titania-Alumina, Appl. Catal., 76, L9-L14
  10. Bauerle, G.L., S.c. Wu, and K. Nobe (1978) Parametric and Durability Studies of NOx Reduction with $NH_3$ on $V_2O_5$ Catalysis, Ind. Eng. Chem. Prod. Res. Dev., 17, 117
  11. Nam, I.S., J.W. Eldridge, and J.R. Kittrell (1986) Deactivation of a Vanadia Alumina Catalyst for NO Reduction by $NH_3$, Ind. Eng. Chem. Prod. Res. Dev., 25,192
  12. Shkada, T., K. Fudimoto, T. Kunugi, and H. Tominaga(1983) Reduction of Nitric Oxide with Ammonia on Silica-Supported Vanadium Oxide Catalysts, J. Chem. Tech. Biotechnol., A33, 446
  13. Soh, B.W. and I.S. Nam(2003) Effect of Support Morphology on the Sulfur Tolerance of $V_2O_5/A1_2O_3$ Catalyst for the Reduction of NO by $NH_3$, Ind. Eng. Chem. Res., 42, 2975-2986
  14. Park, J.K. and J.S. Lee (2003) Preparation of Porous Cordierite Using Gelcasting Method and its Feasibility as a Filter, J. Porous Mater., 9, 203-210 https://doi.org/10.1023/A:1020939018359
  15. Park, J.K. and S.H. Lee (2001) Observation and Segmentation of Gray Images of Surface Cells in Open Cellular Foams, J. of Ceram. Soc. of Jpn., 109,7
  16. Tian, L., D. Ye, and H. Liang (2002) Catalytic Performance of a Novel Ceramic-Supported Vanadium Oxide Catalyst for NO Reduction with $NH_3$, Catal. Today, 2822, 1-12
  17. Pinaeva, L.G., A.P. Suknev, A.A. Budneva, E.A. Paukshtis, and B.S. alzhinimaev (1996) On the Role of Oxygen in the Reaction of NO Reduction by $NH_3$ over Monolayer $V_2O_5/TiO_2$ Catalyst, J. Molecular Catal., 112, 115
  18. Ham, S.W., H. Choi, I.S. Nam, and Y.G. Kim (1992) Deactivation of Copper-on-Exchanged Hydrogen Mordenite-Type Zeolite Catalyst by $SO_2$ for NO Reduction by $NH_3$, Catal. Today, 11, 611-621
  19. Nam, I.S., J.W. Eldridge, and J.R. Kittrell (1986) Model of Temperature Dependence of a Vanadia-Alumina Catalyst for NO Reduction by $NH_3$: Fresh Catalyst, lng. Eng. Chem. Prod. Res. Dev., 25, 186-192
  20. Reddy, B.M., I. Ganesh, and V.R. Reddy (1998) Influence of $V_2O_5$ and $Nb_2O$Nb205 on Thermal Stability of $TiO_2$ Anatase, J. Mater. Sci. Lett., 17, 1913- 1915 https://doi.org/10.1023/A:1026406010422