The Removal Properties of NO Using KOH-Treated ${\gamma}$ -Alumina

KOH로 처리된 ${\gamma}$} -Alumina를 이용한 NO의 제거특성

  • 모세영 (충북대학교 환경공학과) ;
  • 김만수 (충북대학교 환경공학과) ;
  • 장홍기 (충북대학교 환경공학과) ;
  • 안대현 (충북대학교 환경공학과) ;
  • 손종렬 (고려대학교 보건대학 환경위생과)
  • Published : 2001.09.01

Abstract

NOx coming from combustion make photochemical smog and acid rain, cause chronic respiratory disease resulting in critical hazard to environment and human health. Most composition of NOx coming from combustion is NO and the remaining small amount of $NO_x$ is $NO_2$. Currently, many technologies are developed and used to control NO release. One of these technologies is control technology through use of the adsorbent. In this study, two methods were used to make the adsorbent and compared. KOH and ${\gamma}{\;}-alumina$ were mixed by using two methods. Then, the experimental conditions were as follows: the concentrations of KOH used were 1 mole, 0.5 mole, and 0.1 mole, respectively and the amount of ${\gamma}{\;}-alumina$$250^{\circ}C$. As a result, precipitation method, which is one of the production methods of the adsorbent, showed the most removal efficiency as KOH concentration as 1 mole and reaction temperature as $100^{\circ}C$ were used. This study shows 40 to 60% of micropores of ${\gamma}{\;}-alumina$ was lost by the reaction with KOH through the analysis of SEM and BET Finally, KOH is the most predominant factor to control the removal of NO rather than micropore of the adsorbent.

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References

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