한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제16권5호
  • /
  • Pages.60-67
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  • 2008
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

Urea-SCR 시스템에서의 Cu-ZSM5/알루미나 비드 촉매필터의 De-NOx 특성

De-NOx Characteristics for Cu-ZSM5/Alumina Beads Catalyst Filter in Urea-SCR System

  • 장영상 (한양대학교 지구환경시스템공학과) ;
  • 신영섭 (한양대학교 지구환경시스템공학과) ;
  • 이병준 (한국 에이브이엘) ;
  • 박재구 (한양대학교 지구환경시스템공학과)
  • Jang, Young-Sang (Department of Geoenvironmental System Engineering, Hanyang University) ;
  • Shin, Young-Seop (Department of Geoenvironmental System Engineering, Hanyang University) ;
  • Lee, Byoung-Jun (AVL Korea Co., Ltd.) ;
  • Park, Jai-Koo (Department of Geoenvironmental System Engineering, Hanyang University)
  • 발행 : 2008.09.01
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초록

The catalytic filter of Cu-ZSM5/alumina beads was considered to reduce NOx in the urea SCR system. Catalytic support of porous alumina beads with mean pore size $130{\mu}m$ and porosity $75{\sim}83%$ were prepared using foaming and gel-casting method. The Cu-ZSM5 catalysts were coated on the supporting alumina beads using $Cu(NO_3)_2$ by ion exchange method. After a washcoating process was applied to coat 10w% Cu-ZSM5 on porous alumina bead, coating layer was estimated $20{\mu}m$ in thickness. The characterization and the feasibility as a catalytic supports were investigated. And the NOx conversion test in Cu-ZSM5/Alumina Beads filter system was conducted by using Urea as reductants under laboratory test. The NOx conversion was increased as size and porosity of beads and observed more than 95% excellent NOx conversion above $300^{\circ}C$.

키워드

참고문헌

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