Table 6. Comparison of the Performances of Different Catalysts for Propane Dehydrogenation at 2.75 h Time on Linea,255.
| catalyst | XI (%) | Xf (%) | ±X (%) | SI (%) | Sf (%) | ±S (%) |
|---|---|---|---|---|---|---|
| In/Al2O3 | 10.0 | 9.5 | –0.5 | 44.0 | 58.5 | +14.5 |
| Pt/Al2O3 | 29.5 | 15.5 | –14.0 | 55.5 | 67.0 | +11.5 |
| PtSn/Al2O3 | 37.5 | 23.5 | –14.0 | 83.0 | 86.0 | +3.0 |
| PtIn/Al2O3 | 53.0 | 37.0 | –16.0 | 93.5 | 92.0 | –1.5 |
| PtSn/In-Al2O3 | 58.0 | 48.0 | –10.0 | 92.5 | 93.5 | +1.0 |
a
Xi and Xf are the initial and final propane conversions, respectively, and ±X is the change in conversion over the reaction cycle. Si and Sf are the initial and final propene selectivities respectively, and ±S is the change in selectivity over the reaction cycle.