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

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

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