A Study of CO, $C_{3}H_{6}$, and $SO_{2}$ oxidation for Diesel Emission Control over Pt, Pd, Pt-W and Pd-w Catalysts and their Characterization

디젤 자동차 배출 가스 저감을 위한 Pt, Pd 촉매의 특성 분석 및 W 첨가에 따른 CO, $C_{3}H_{6}$, $SO_{2}$ 산화 반응 활성에 관한 연구

  • 임재영 (학생중앙군사학교 연세대학교 학군단) ;
  • 김태원 (연세대학교 공과대학 화학공학과) ;
  • 정우식 (연세대학교 공과대학 화학공학과) ;
  • 김경림 (연세대학교 공과대학 화학공학과)
  • Published : 1996.06.01

Abstract

The catalysts composed of Pt, Pd and W as active-components, $Al_{2}O_{3}$ and $SiO_{2}$ as supports, were perpared on the honeycomb type substrate and characterized by BET, SEM, TGA, FT-IR and XRD for diesel emission control. CO, $C_{3}H_{6}$, and $SO_{2}$ oxidation was carried out over these catalysts in a fixed bed continuous flow reactor at the temperatures between 100-500.deg.C and reactant gas was composed of 10 vol.% $O_{2}$, 1 vol.% CO, 0.8 vol.% $C_{3}H_{6}$ and 88.2 vol.% $N_{2}$. It was found that under these experimental conditions, the CO, $C_{3}H_{6}$ oxidation activity of Pt-W catalyst was higher than that of any other prepared catalyst, and this catalyst had also a good inhibition effect on $SO_{2}$ oxidation. Also it was show that the influence of $SO_{2}$ on $Al_{2}O_{3}$ was more sever than that of $SO_{2}$ on $SiO_{2}$.

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References

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