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Catalysts with and without chelating agents and their overall DBT conversions.
| Catalysts | Chelating agent | MoO3 (wt%) | CoO3 (wt%) | DBT conversion (%) | ||
|---|---|---|---|---|---|---|
| 4 h | 8 h | |||||
| CoMo6 | — | 6 | 1.5 | 4:1 | 15.5 | 37.4 |
| CoMo12 | — | 12 | 3 | 4:1 | 25.2 | 53.2 |
| CoMo6E | EDTA | 6 | 1.5 | 4:1 | 33.9 | 61.9 |
| CoMo12E | EDTA | 12 | 3 | 4:1 | 38.4 | 76.5 |
| CoMo18E | EDTA | 18 | 4.5 | 4:1 | 47.6 | 91.6 |
| CoMo6C | CA | 6 | 1.5 | 4:1 | 22.2 | 42.8 |
| CoMo12C | CA | 12 | 3 | 4:1 | 30.5 | 61.5 |
| CoMo18C | CA | 18 | 4.5 | 4:1 | 35.2 | 77.4 |
EDTA, ethylenediaminetetraacetic acid; CA, citric acid.
