Table 2.
Properties of zeolite samples
| Sample name | Si/Ala | Surface area (m 2 /g)b | Pore size (nm)с | Pore volume (cc/g)c | Particle size (μm) |
|---|---|---|---|---|---|
| Na+-BEA30 | 10 ± 1.0 | 260 | 0.54 | 0.84 | Approximately 0.4 |
| NH4 +-BEA30 | 10 ± 1.0 | 279 | 0.64 | 0.89 | Approximately 0.4 |
| H+-BEA30 | 10 ± 1.0 | 490 | 0.85 | 1.3 | Approximately 0.4 |
| Na+-BEA50 | 17.7 ± 1.8 | 462 | 0.18 | 0.25 | Approximately 0.4 |
| NH4 +-BEA50 | 17.7 ± 1.8 | 494 | 0.23 | 0.31 | Approximately 0.4 |
| H+-BEA50 | 17.7 ± 1.8 | 666 | 0.26 | 0.54 | Approximately 0.4 |
| LTA-4 | 0.84d | 557 | 0.31 | 0.67 | 4 |
| LTA-9 | 0.84d | 550 | 0.28 | 0.51 | 9 |
| LTA-22 | 0.84d | 512 | 0.18 | 0.21 | 22 |
aSi/Al ratio of zeolite crystals was measured by EDX; bSurface area of samples was measured by BET; cPore volume and size of the samples were measured by DR method; dSi/Al ratios in the gel.