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Selective Catalytic Reduction of NOx with Ammonia over Cu and Fe Promoted Zeolite Catalysts
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ha, Ho-Jung Ju-Hwan Choi, Joon-Hwan Han, Jong-Dae |
| Copyright Year | 2013 |
| Abstract | The NH3-selective catalytic reduction (SCR) reaction of NO with excess of oxygen were systematically investigated over Cu-zeolite and Fe-zeolite catalysts. Cu-zeolite and Fe-zeolite catatysts to adapt the SCR technology for mobile diesel en- gines were prepared by liquid ion exchange and incipient wetness impregnation of NH4-BEA and NH4-ZSM-5 zeolites. The catalysts were characterized by BET, XRD, FE-TEM (field emission transmission electron microscopy) and SEM/EDS. The SCR examinations performed under stationary conditions showed that the Cu-exchanged BEA catalyst revealed pronounced perfor- mance at low temperatures of 200-250 ℃. With respect to the Fe-zeolite catalyst, the Cu-zeolite catalyst showed a higher activity in the SCR reaction at low temperatures below 250 ℃. BEA zeolite based catalyst exhibited good activity in comparison with ZSM-5 zeolite based catalyst at low temperatures below 250 ℃. |
| Starting Page | 287 |
| Ending Page | 294 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.7464/ksct.2013.19.3.287 |
| Volume Number | 19 |
| Alternate Webpage(s) | https://www.cheric.org/PDF/CT/CT19/CT19-3-0287.pdf |
| Alternate Webpage(s) | https://doi.org/10.7464/ksct.2013.19.3.287 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |