| Sample | Wt% Zr | Wt% Al | Wt% Si | Wt% O | Wt% S |
| SO3H-ZrO2 | 42.62 | --- | --- | 30.11 | 6.31 |
| SO3H-SBA-15 | --- | 1.07 | 33.02 | 46.99 | 0.88 |
| SO3H-ZSM-5 | --- | 1.31 | 28.61 | 44.40 | 1.59 |