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| catalyst | use | catalytic activity |
|---|---|---|
| Metallic Functions | ||
| CoMo | HDS | moderate |
| NiMo | HDN, MHYC | high |
| NiW | HDN, MHYC | very high |
| PtPd | HDA, HYC | high |
| Acid Functions | ||
| γ-Al2O3 | HDA | low |
| amorphous SiO2/Al2O3 | MHYC | high |
| HY and HZSM-5 zeolites | HYC | very high |
