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A Study on Degradation Characteristic and Flow Behavior in De-NOx Catalyst

탈질촉매 내 열화특성과 유동상태에 관한 연구

  • Hwang, Seung-Min (Department of Health Environment, Graduate School of Venture, Hoseo University)
  • 황승민 (호서대학교 벤처전문대학원 보건환경학과)
  • Received : 2010.02.18
  • Accepted : 2010.08.26
  • Published : 2010.09.30

Abstract

In this study, the indirect correlation of degradation characteristic and flow behavior in the de-NOx catalyst is investigated experimentally. The inner flow behavior in the de-NOx catalyst is varied from turbulent flow to laminar flow and the degradation of the de-NOx catalyst is remarkably affected by the inner flow. The degradation of the catalyst is increased in the upstream region near the inlet because injected turbulent flow enhances the adhesion of ash particle on the catalyst surface. The degradation of the catalyst near the inlet also governs the overall efficiency of the catalyst. The amount of adhered ash particles on the catalyst surface decreases as they progress downstream. This is due to the inner flow transition from turbulent flow to laminar flow.

Keywords

De-NOx;Catalyst;Degradation;Turbulent-laminar transition

Acknowledgement

Supported by : 호서대학교

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