Simultaneous Removal of NOx/SOx by Catalyst-loaded Cordierite Porous Filter

촉매 담지 코디어라이트 다공성 필터의 NOx/SOx 동시제거에 대한 연구

  • 이시희 (건국대학교 화학과) ;
  • 정구춘 (건국대학교 화학과) ;
  • 김지웅 (산업기술시험원 재료평가팀) ;
  • 신민철 (산업기술시험원 재료평가팀) ;
  • 이희수 (산업기술시험원 재료평가팀)
  • Received : 2001.09.17
  • Published : 2002.06.25

Abstract

After porous filters were manufactured using cordierite powder whose mean paricle size was 200${\mu}m$, they were loaded with catalysts such as $V_2O_5$, CuO and $LaCoO_3$ by vacuum impregnation method. And the NOx/SOx simultaneous removal efficiency was measured by passing NO and $SO_2$ through catalyst-loaded ceramic filters. The cordierite porous filters had the apparent porosity of 61.6%, the compressive strength of 12.3 MPa and the pressure drop of 147 pa at the face velocity of 5 cm/sec. According to the analysis of NO/$SO_2$ simultaneous removal efficiency, perovskite $LaCoO_3$ catalyst was the most efficient for the simultaneous NO and $SO_2$ removal. The $LaCoO_3$ catalyst-loaded filter could remove more than 90% for NO and more than 80% for $SO_2$.

Keywords

cordierite porous filter;catalyst;NOx/SOx simultaneous removal;$V_2O_5$;CuO;perovskite $LaCoO_3$

Acknowledgement

Supported by : 환경부

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