Characteristics of Low Temperature De-NOx Process with Non-thermal Plasma and NH3 Selective Catalytic Reduction (I)

저온 플라즈마 및 암모니아 선택적 환원공정을 활용한 저온 탈질공정의 특성(I)

  • Lee, Jae-Ok (Environment and Energy Research Division, Korea Institute of Machinery and Materials) ;
  • Song, Young-Hoon (Environment and Energy Research Division, Korea Institute of Machinery and Materials)
  • 이재옥 (한국기계연구원 환경.에너지기계연구본부) ;
  • 송영훈 (한국기계연구원 환경.에너지기계연구본부)
  • Received : 2006.05.30
  • Accepted : 2006.07.12
  • Published : 2006.08.10

Abstract

An experimental study on a combined $De-NO_x$ process of non-thermal plasma and $NH_{3}$ SCR, which can be operated under low temperature conditions, i.e. $150{\sim}200^{\circ}C$, has been conducted. The test results confirmed feasibility of fast SCR reaction, which shows faster reactivity compared with typical SCR reaction under the low temperature conditions. The test showed that pre-oxidation step to convert NO to $NO_2$ is necessary for the fast SCR reaction, and the appropriate ratio of $NO_{2}/NO_{x}$ ranges from 0.3 to 0.5. Ammonium salts produced under low temperature conditions, effects of hydrocarbons on the combined process, the operation power of the process are discussed in the present study.

Acknowledgement

Grant : 플라즈마/촉매를 이용한 탈질공정기술개발

Supported by : 에너지관리공단

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