DeNOx by SCR (Selective Catalytic Reduction) Using LPG as a Reductant

LPG-SCR에 의한 질소산화물 제거

  • Kim, Moon-Chan (Department of Environmental Engineering, Cheongju University)
  • 김문찬 (청주대학교 환경공학과)
  • Published : 2012.12.10

Abstract

In this study, selective catalytic reduction (SCR) reaction was performed using liqufied petroleum gas (LPG) as a reductant for removing NOx. The catalysts were manufactured with different amounts of Cu and Fe supported on HZSM-5 in order to remove NOx. The NOx conversion ratio was studied with changing the temperature and the catalyst amount. The catalysts were manufactured by calcination with flowing the ambient air at $500^{\circ}C$ for three hours. Cupper of 1~4 wt% and iron of 0.5~2 wt% were supported on HZSM-5 of which Si/Al ratio were 80. According to the reaction results, the catalyst which Cu of 3 wt% supported on HZSM-5 showed the highest conversion rate. XRD, XPS, and TPR analysis were also performed for the characterization of catalysts.

Keywords

selective catalytic reduction;LPG;catalyst;deNOx;characterization

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