Table 3.
BET surface areas of commercial supports, of calcined Ni samples prepared by impregnation, and Rh-Ni samples prepared by solid state reaction (calcined, reduced and after reaction).
| BET surface areas of supports and catalysts (m2/g) | ||||
|---|---|---|---|---|
| COMMERCIAL SUPPORTS | ||||
| Al2O3 | CeO2 | La2O3 | MgO | ZrO2 |
| 182.5 | 1.2 | 1.7 | 164.6 | 5.4 |
| CATALYSTS PREPARED BY IMPREGNATION OF COMMERCIAL | ||||
| SUPPORTS | ||||
| Ni/Al2O3 | Ni/CeO2 | Ni/La2O3 | Ni/MgO | Ni/ZrO2 |
| (Calcined samples) | ||||
| 176.9 | 3.1 | 8.2 | 60.5 | 6.5 |
| CATALYSTS PREPARED BY SOLID STATE REACTION | ||||
| Rh-Ni/Al2O3 | Rh-Ni/CeO2 | Rh-Ni/La2O3 | Rh-Ni/MgO | Rh-Ni/ZrO2 |
| (Calcined samples) | ||||
| 66.6 | 63.8 | 6.1 | 10.9 | 16.0 |
| (Fresh reduced catalysts) | ||||
| 37.9 | 43.0 | 12.5 | 15.4 | 8.4 |
| (Catalysts after reaction) | ||||
| 38.5 | 23.6 | 5.5 | 5.7 | 9.6 |