SCR of NOx by C3H6: comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts
The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bim...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Academic Press
2004
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/12337/ http://eprints.utm.my/12337/ http://eprints.utm.my/12337/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H2. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO2 have elevated its performance compared to the Cu/Cr/CeO2 catalyst. By having such salient features, the competitiveness factor (S SCR-HC) assigned by Cu/Ag/CeO2 was generally better than that of the other tested catalysts. The presence of O2 was proven to be a very crucial factor for promoting the selective reduction of NO x with C3H6. |
|---|