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고정층 SCR반응기에서 질소산화물 제거효율 평가 원문보기

  • 저자

    박기우

  • 학위수여기관

    昌原大學校

  • 학위구분

    국내석사

  • 학과

    環境·工業化學科

  • 지도교수

  • 발행년도

    2002

  • 총페이지

    v, 42장.

  • 키워드

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T8935885&outLink=K  

  • 초록

    Selective Catalytic Reduction(SCR) is a developed and most commonly employed NO removal technology. V₂O_5/TiO₂+Al₂O₃, TiO₂, NMO catalysts, which are known as the best catalyst for SCR, are selected to examine the effect of the NO removal activity in a fixed bed reactor The equipment used this study was composed of gas supply part, reaction part, and measurement part. Thus, this study was considered removal efficiency of reactor temperature, space velocity, NH₃/NO mole ratio, supplied NO concentration. The effect of reactor temperature The V₂O_5/TiO₂+Al₂O₃ catalyst showed that over 90% of NO removal efficiency was working in reactor temperature range from 250 to 400℃, NMO catalyst was working in reactor temperature range from 200 to 350℃. But TiO₂ catalyst showed that it is estimated under 60% of NO removal efficiency in test reactor temperature range. The effect of space velocity The efficiency of all catalyst was decreased due to the reason that was the more increased space velocity, the more decreased retention time. The effect of NH₃/NO mole ratio NO removal efficiency properties were below TiO₂ catalyst showed that there was no difference of efficiency according to mole ratio. Although NMO catalyst and V₂O_5/TiO₂+Al₂O₃ catalyst were trending to increase according to the mole ratio, under 250 degree celsius increased Amonia slip.


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