Research Article
Promotional Effect on Selective Catalytic Reduction of NOx with NH3 over Overloaded W and Ce on V2O5/TiO2 Catalysts
Table 1
conversion at 200°C and N
2O concentration at 400°C obtained on all the samples we tested in this study.
| Sample | conversion (%) at 200°C | N2O concentration (ppm) at 400°C |
| 1 wt% V2O5/TiO2 | 10 | 15.4 | 3 wt% V2O5/TiO2 | 55 | 41.3 | 5 wt% V2O5/TiO2 | 67 | 42.1 |
| W/VT (9 : 3)(a) | 67 | 36.2 | Ce/VT (9 : 3) | 63 | 10.8 | W/Ce/VT (9 : 9 : 3) | 58 | 14.4 | Ce/W/VT (9 : 9 : 3) | 51 | 13.2 |
| W/VT (9 : 1) | 34 | 6.9 | Ce/VT (9 : 1) | 41 | 5.6 | W/Ce/VT (9 : 9 : 1) | 36 | 5.0 | Ce/W/VT (9 : 9 : 1) | 33 | 5.2 |
| W/VT (15 : 1) | 28 | 6.7 | Ce/VT (15 : 1) | 44 | 3.7 | W/Ce/VT (15 : 15 : 1)(b) | 68 | 4.2 | Ce/W/VT (15 : 15 : 1)(c) | 55 | 3.7 |
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(a), (b), and (c) were chosen as the promising catalysts.
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