Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of 3a molecular sieve desiccant in China. If you're going to wholesale high quality 3a molecular sieve desiccant, welcome to get free sample and discount information from our factory. We also accept customized orders.
Noted: We can custom desiccant for specific application. Accept OEM and ODM orders.
|
Parameter |
Specification |
|
Product Name |
3A Molecular Sieve Desiccant |
|
Molecular Formula |
2/3K₂O · 1/3 Na₂O · Al₂O₃ · 2SiO₂ · 4.5H₂O |
|
Effective Pore Opening |
Approximately 3 Angstroms (0.3 nm) |
|
Shape/Form |
Beads, Pellets |
|
Bead Size |
1-2 mm, 2-3 mm, 3-5 mm |
|
Pellet Size |
1/16", 1/8" |
|
Bulk Density |
0.75 g/ml - 0.82 g/ml |
|
Crush Strength |
≥ 35 N (1.5 mm beads) |
|
Static Water Adsorption @ 25°C (RH=50%) |
≥ 17.5% (by weight) |
|
Static Water Adsorption @ 25°C (RH=80%) |
≥ 20.0% (by weight) |
|
Equilibrium Water Capacity @ 25°C, 1 atm |
~21% - 22% |
|
Attrition Loss |
≤ 0.1 wt% |
|
Regeneration Temperature |
200 - 300°C (392 - 572°F) |
|
Moisture Content (as shipped) |
≤ 1.5% |
|
Heat of Adsorption |
4200-4500 kJ/kg |
|
Applications |
Dehydration of unsaturated hydrocarbon streams (e.g. ethylene, propylene, butadiene), drying of polar liquids (e.g. methanol and ethanol), drying of gas streams (e.g. natural gas, air, inert gases) |
Description
This 3A molecular sieve desiccant is a type of synthetic zeolite with a pore size of approximately 3 Angstroms (0.3 nanometers). This precise pore size enables it to adsorb water molecules effectively while excluding larger molecules. Because of this selective adsorption property, 3A molecular sieves are highly efficient at removing moisture from gases and liquids, preventing the entry of potentially larger, unwanted molecules such as hydrocarbons. They are widely used in the drying of natural gas, refrigerants, and other industrial applications where moisture control is crucial. Additionally, their robust thermal and chemical stability make them suitable for use in various demanding environments.
Absorption Performance
The 3A molecular sieve desiccant excels in moisture adsorption and absorption capabilities. Its micropores, approximately 3 angstroms in diameter, allow it to selectively adsorb water molecules while excluding larger molecules. This selective adsorption is highly efficient, with a typical water adsorption capacity of about 20% by weight at 25°C and 80% relative humidity. Furthermore, the 3A molecular sieve can maintain this performance even at elevated temperatures, with regeneration possible at temperatures as high as 230°C. These characteristics make the desiccant an ideal choice for a range of industrial applications, including petrochemical, natural gas purification, pharmaceuticals, and food packaging, ensuring these systems remain dry and free from moisture-related issues.
Applications
This 3A molecular sieve desiccant is primarily used in several applications:
1. Drying Polar Liquids: Due to its pore size of 3 Angstroms, it is effective in drying polar liquids such as ethanol.
2. Gas Drying: It is extensively used to remove moisture from gases like natural gas and ammonia.
3. Air Purification: It is utilized in air purification and gas separation processes due to its high hygroscopicity.
4. Pharmaceutical and Food Industries: It is employed in the packaging and storage of pharmaceuticals and food products to maintain dryness and stability.
Custom Service
When customizing 3A molecular sieve desiccant, you need to consider a variety of factors, such as particle size and shape, adsorption capacity, heat resistance and regeneration conditions, chemical stability, mechanical strength, packaging and storage conditions, etc. If you want to customize high-quality products, you can cooperate with us. As a professional manufacturer, we can produce molecular sieves with the best use effect and long-term stability.
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