Silica Gel is a porous, amorphous form of silica(SiO2).
It is composed of a vast network of interconnected microscopic pores. As opposed to zeolites, silica gels have larger pores with a wide range of diameters –typically between 5 Å and 300 Å – and do not allow for the separation of molecules solely dependent on their size.
It is possible to adjust the pore size range in the manufacturing process. Silica gels synthesized with an average pore size of about 20Å are known as narrow pore silica gels. Silica gels with an average pore size of about 110Å are called wide pore silica gels.
Pressure swing adsorption is a kind of new technology for gas separation and purification. Libra Silica gel could be used in PSA H2 recovery process, especially Linde PSA process to replace Linde LS GB 163 adsorbent.
| Item | Standard Value |
| Static Water Adsorption Capacity (%) At 10% | ≥ 6 |
| Static Water Adsorption Capacity (%) At 80% | ≥ 32 |
| Size Ratio (%) | ≥ 94 |
| Loss on Ignition (%) | ≤ 2 |
| Bulk Density (g /l) | ≥ 750 |
| SiO2 (%) | ≥ 98 |
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