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분말형 MnOx와 V2O2/TiO2 촉매를 이용한 저온영역의 백필터 공정에서 질소산화물 제거 특성
Characterization of NOx Reduction on Filter Bag Support System at Low Temperature using Powder Type MnOx and V2O2/TiO2 Catalysts

김병환    ((주)대우건설기술연구원   ); 김정헌    ((주)대우건설기술연구원   ); 강필선    ((주)대우건설기술연구원   ); 유승관    ((주)대우건설기술연구원  );
  • 초록

    In this study, the selective catalytic reduction of $NO_x$ with ammonia was carried out in a filter bag support reactor. The experiments were performed by powder type $MnO_x$ and $V_2O_5$ / $TiO_2$ catalyst at low temperature between 130 and $250^{\circ}C$ . Also, the effect of $SO_2$ and $H_2O$ on the NO conversion was investigated under our test conditions. The powder type catalysts were analyzed by X-ray photoelectron spectrum (XPS), X-ray diffraction(XRD), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). It was observed that NO removal efficiency of the powder type $V_2O_5$ / $TiO_2$ catalyst was 85% at low temperature( $200^{\circ}C$ ) under presence of oxygen and that of $MnO_x$ was 50% at the same condition. The powder type $V_2O_5$ / $TiO_2$ catalyst, in conclusion, was found to be available for SCR reaction in a filter bag support system.


  • 주제어

    $NO_x$ reduction .   Vanadium oxide .   Maganese oxide .   Bag filter .   SCR.  

  • 참고문헌 (13)

    1. Hong, M.S., S.H. Moon, J.C. Lee, and D.S. Lee (2004) Removal of NO using CuO/$3Al_{2}O_{3}$.$2SiO_{2}$ catalyst impregnated ceramic candle filters, Korean J. of Atmos. Environ., 20(3), 291-302. (in Korean with English abstract)     
    2. Huang, J., Z. Tong, Y. Huang, and J. Zhang (2008) Selective catalytic reduction of NO with $NH_{3}$ at low temperatures over iron and manganese oxides supported on mesoporous silica, Appl. Catal. B-Environ., 78, 309- 314. 
    3. Jiang, B., Y. Liu, and Z. Wu (2009) Low-temperature selective catalytic reduction of NO on $MnO_{x}$/$TiO_{2}$ prepared by different methods, J. Hazard. Mater., 162, 1249- 1254. 
    4. Kang, M., E.D. Park, J.M. Kim, and J.E. Yie (2007) Manganese oxide catalysts for $NO_{x}$ reduction with $NH_{3}$ at low temperatures, Appl. Catal. A-Gen., 327, 261-269. 
    5. Kim, K.H., K.J. Bae, B.K. Choi, and S.H. Hong (2007) Denitrification technology (SCR) trend and nanocatalyst, KIC News, 10(4), 45-59. 
    6. Kim, B.H. and J.H. Kim (2008) Simultaneous removal of $NO_{x}$ and dioxin by adsorbents/catalysts, J. of Korea Solid Waste Manage. Eng. Soc., 25(8), 638-689. (in Korean with English abstract) 
    7. Kim, B.H., S. Lee, S. Maken, H.J. Song, J.W. Park, and B. Min (2007) Removal characteristics of PCDDs/Fs from municipal solid waste incinerator by dual bag filter (DBF) system, Fuel, 86(5), 813-819. 
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    9. Lee, S.J. and S.C. Hong (2008) Deactivation and regeneration of a used De-$NO_{x}$ SCR catalyst for wastes incinerator, J. of Korean Ind. Eng. Chem., 19(3), 259-263. (in Korean with English abstract)     
    10. Li, J., J. Chen, R. Ke, C. Luo, and J. Hao (2007) Effects of precursors on the surface Mn species and the activities for NO reduction over $MnO_{x}$/$TiO_{2}$ catalysts, Catal. Commun., 8, 1896-1900. 
    11. Park, K.H., J.Y. Lee, S.H. Hong, S.H. Choi, and S.C. Hong (2008) A study on the deactivation of commercial De$NO_{x}$ catalyst in fired power plant, J. of Korean Ind. Eng. Chem., 19(4), 376-381. (in Korean with English abstract) 
    12. Pena, D.A., B.S. Uphade, E.P. Reddy, and P.G. Smirniotis (2004) Identification of surface species on titaniasupported manganese, chromium, and copper oxide low-temperature SCR catalysts, J. Phys. Chem. B, 108, 9927-9936. 
    13. Xu, W., Y. Yu, C. Zhang, and H. He (2008) Selective catalytic reduction of NO by $NH_{3}$ over a Ce/$TiO_{2}$ catalyst, Catal. Commun., 9, 1453-1457. 

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