Silica-Alumina Gel
This product is a fine-pore water-resistant silica-alumina gel, which generally acts as a protective layer for fine-pore silica gel and fine-pore silica-alumina gel. It can also be used alone in cases where the content of free water (liquid water) is very high. Even in operating systems containing liquid water, a relatively low dew point can be achieved with this product.
Product Overview
[Properties]
This product is a fine-pored water-resistant silica-alumina gel. It is generally used as a protective layer for fine-pored silica gel and fine-pored silica-alumina gel, and can also be used alone under conditions with high free water (liquid water) content. When liquid water is present in the operating system, this product can still achieve relatively low dew points.
[Applications]
Mainly used for air drying in air separation processes, acetylene adsorption during the production of liquid oxygen and liquid nitrogen, drying of compressed air and various industrial gases, and as a liquid adsorbent and catalyst carrier in petrochemical, power, and brewing industries. It also serves as a protective layer for ordinary silica gel and silica-alumina gel.
When used as a protective layer, the dosage of this product is approximately 20% of the total amount used.
[Technical Specifications]
| Item | Specification | |
| SiO2, % | Approx. 83 | |
| Al2O3, % | Approx. 17 | |
| Specific Surface Area, m²/g | 450 | |
| Adsorption Capacity % (25°C, wt) | RH 20% | ≥ 5.8 |
| RH 40% | ≥ 11.5 | |
| RH 80% | ≥ 30 | |
| Bulk Density, g/l | Approx. 700 | |
| Crush Strength, N/grain | ≥ 60 | |
| Pore Volume, ml/g | Approx. 0.4 | |
| Moisture, % | ≤ 3.0 | |
[Specifications] 2–5mm, 2–4mm, 3–5mm, 1–3mm, etc.
[Packaging] 25kg composite bag packaging or 500kg bulk bag packaging, etc.
[Remarks] 1) Particle size, packaging, and moisture content can be customized according to customer requirements.
2) Crush strength is related to particle size.
