화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.26, No.6, 666-673, December, 2015
DOI10.14478/ace.2015.1090  Export Citation
고온 SCR 촉매의 반응 특성 및 효율 증진에 관한 연구
A Study on the Reaction Characteristics and Efficiency Improvement of High-temperature SCR Catalyst
남기복, 강연석, 홍성창1, †
  • 경기대학교 일반대학원 환경에너지시스템공학과
  • 1경기대학교 환경에너지시스템공학과
Ki Bok Nam, Youn Suk Kang, and Sung Chang Hong1, †
  • Department of Environmental Energy Systems Engineering, Graduate school of Kyonggi University, 94 San, Iui-dong, Youngtong-ku, Suwon-si, Gyeonggi-do, 16227, Korea
  • 1Department of Environmental Energy Systems Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-ku, Suwon-si, Gyeonggi-do, 16227, Korea
E-mail:
초록
연구에서는 고온영역에서 NOx를 제어하기 위한 선택적 환원촉매(SCR)의 연구를 수행하였다. 제조된 촉매들의 구조적 특성 및 흡.탈착 특성을 확인하기 위하여 XRD, FT-IR 분석을 수행하였다. Anatase TiO2 지지체의 경우 미미한 NOx 전환율을 나타내었으며, 이에 W을 활성금속으로 하여 제조한 W/TiO2 촉매에서 우수한 NOx 제거 능력을 보였다. 특히 400 ℃ 이상의 고온영역에서 순수 TiO2의 NOx 전환율보다 W이 함유된 W/TiO2의 촉매에서 급격한 활성 증가를 확인할 수 있었다. 또한, 장시간의 열충격에 따른 반응활성이 감소되는 현상이 억제됨을 확인하였다.
In this paper the selective reduction catalyst (SCR) for controlling the NOx at high temperature range was studied. XRD and FT-IR BET analysis was also performed to determine the structural properties and adsorption/desorption characteristics of the catalyst. In the case of anatase TiO2 support, a negligible NOx conversion was observed, but the W/TiO2 catalyst made using W as a active metal showed an excellent ability to remove NOx. In particular, the W/TiO2 exhibited a rapid increase in the catalytic activity due to the presence of W for the NOx conversion compared to that of using the pure TiO2 at a high temperature range over 400 ℃. In addition, the phenomenon of reduced reaction activity due to the heat shock for a long time was found to be suppressed.
Keywords:NOx;TiO2;Catalyst;W;metal
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