3A molecular sieve is an alkali metal aluminosilicate, sometimes also known as 3A zeolite molecular sieve.
Explanation
Chemical formula: 2/3K2O · 1/3Na2O · Al2O3 · 2SiO2 · 9/2H2O
Effective pore size: approximately 3 Å (1 Å=0.1 nanometers);
The pore size of 3A molecular sieve is 3 Å.
For adsorbing water, it does not adsorb any molecules with a diameter greater than 3 Å.
According to its industrial application characteristics, molecular sieves have fast adsorption speed, regeneration times, crush strength, and anti pollution ability.
So this improves the utilization efficiency of molecular sieves and extends their service life.
They are essential desiccants for gas-liquid phase deep drying, refining, and polymerization in the petroleum and chemical industries.
Parameters of 3A molecular sieve
| Model | 3A Molecular Sieve | |||
| Color | White grey | |||
| Nominal pore diameter | 3 angstroms | |||
| Shape | Sphere | Pellet | ||
| Diameter | 1.6-2.5 (mm) | 3.0-5.0 (mm) | 1.6 (mm) | 3.2 (mm) |
| 8*12 (mesh) | 4*8 (mesh) | 1/16 (inch) | 1/8 (inch) | |
| Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.68 | ≥0.68 |
| Crushing strength (N/PC) | ≥55.0 | ≥85.0 | ≥30.0 | ≥50.0 |
| Size ratio up to grade (%) | ≥98.0 | ≥98.0 | ≥96.0 | ≥96.0 |
| Dynamic H2O adsorption (%) | ≥20.0 | ≥20.0 | ≥20.0 | ≥20.0 |
| Static H2O adsorption (%) | ≥21.0 | ≥21.0 | ≥21.0 | ≥21.0 |
| Static C2H4 adsorption (mg/g) | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 |
| H2O content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
| Wear ratio (%) | ≤0.25 | ≤0.25 | ≤0.40 | ≤0.40 |
Application
1) Drying of various liquids (such as ethanol)
2) The dryness of the air
3) Drying of refrigerant
4) Drying of natural gas and methane gas
5) Drying of unsaturated hydrocarbons and cracking gases, ethylene, acetylene, propylene, and butadiene
Storage
Room temperature, relative humidity not exceeding 90%: Avoid water, acid, alkali, isolate from air, and store in a sealed environment.
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