Molecular sieve 5A refers to calcium A type silica aluminumate. 5A molecular sieve can absorb the critical diameter of molecules below 5A, which is mainly used in positive alkane separation, acid removal and co-adsorption of water mixing with carbon dioxide.
5A molecular sieve is commonly known as CA molecular sieve, can adsorb any molecule with diameter less than 5 angstroms. Mainly used in n-isomeric hydrocarbon separation, PSA separation, and co-adsorption of water and carbon dioxide. With high selective adsorption and fast adsorption speed, SNOWPEAK 5A molecular sieve is especially suitable for pressure swing adsorption(PSA) industry, which can adapt to any size of oxygen, hydrogen, carbon dioxide and other gas production PSA devices.
| Type | 5A | |||||
| Nominal Pore Diameter | 5 angstroms | |||||
| Chemical Formula | 0.7CaO . 0.3Na2O . Al2O3 . 2SiO2 . 4.5H2O（SiO2 : Al2O3 ≈2） | |||||
| Shape | Bead | Pellet | ||||
| Application | Hydrogen Production | Liquid Gaseous Drying | Liquid Gaseous Drying | Liquid Gaseous Drying | Liquid Gaseous Drying | |
| Diameter(mm) | 1.6-2.5 | 1.6-2.5 | 3.0-5.0 | 1/16″ | 1/8″ | |
| Static H2O Adsorption(%) | 25℃, Saturated NaCl, 24h | ≥25 | ≥22 | ≥22 | ≥21 | ≥21 |
| 35℃, Saturated NaCl, 24h | ≥21 | ≥21 | ≥20.5 | ≥20.5 | ||
| Static C6H14 Adsorption(%) | BET, 0℃, 36mmHg | ≥12.5 | ≥12.5 | ≥12 | ≥12 | |
| Static N2 Adsorption(ml/g) | 25℃, 760mmHg | ≥11 | ||||
| Static CO Adsorption(ml/g) | 25℃, 760mmHg | ≥28 | ||||
| Bulk Density(g/ml) | ≥0.68 | ≥0.70 | ≥0.68 | ≥0.64 | ≥0.64 | |
| Crush Strength(N) | ≥35 | ≥30 | ≥85 | ≥30 | ≥85 | |
| Wear Ratio(%) | ≤0.3 | ≤0.1 | ≤0.1 | ≤0.2 | ≤0.25 | |
| Water Content(%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | |
| Particle Ratio(%) | ≥97 | ≥98 | ≥98 | ≥95 | ≥94 | |
* Natural Gas and Liquefied Petroleum Gas Processing
* Industrial and Medical Oxygen Production
