Table 4. Specific Surface Area of Catalysts with Different Bentonite Addition Ratios.
| bentonite addition amount | total pore volume of micropores (cm3/g) | single point adsorption total pore volume (cm3/g) | adsorption average pore size (nm) | specific surface area (m2/g) |
|---|---|---|---|---|
| 3:1 | 0.004 | 0.051 | 17.347 | 16.467 |
| 4:1 | 0.004 | 0.049 | 16.820 | 14.996 |
| 5:1 | 0.005 | 0.042 | 16.338 | 12.139 |
| 6:1 | 0.004 | 0.046 | 15.740 | 11.692 |