Good Strength Synthetic Zeolite 3A Molecular Sieve Desiccant for Ethanol Drying
Description of 3A Molecular Sieve Desiccant:
Molecular sieve is a material containing precise and single tiny pores that can be used to adsorb gases or liquids.
Small enough molecules can be adsorbed through the channels, while larger molecules cannot. Unlike a normal sieve, it operates at the molecular level. For example, a water molecule is small enough to pass through but a molecule larger than it is not. Therefore, molecular sieves are often used as desiccants. A molecular sieve can absorb up to 22 percent of its own weight in water.
Usually, molecular sieves are composed of aluminosilicate minerals, but also synthetic mixtures or compounds.
A molecular sieve is composed of LTA type skeleton structure, 3A molecular sieve main crystal hole is eight ring structure.
Chemical formula: ⅔ K2O×⅓ Na2O×Al2O3×2 SiO2×4.5 H2O
Specification of 3A Molecular Sieve Desiccant:
| Molecular Sieve 3A Typical Physical Properties | ||||
| Item | Unit | 8*12 Mesh | 4*6 Mesh | |
| Bead Size | mm | 1.6-2.5 | 3.0-5.0 | |
| Bulk Density | g/ml ≥ | 0.70-0.82 | 0.65-0.80 | |
| Equilibrium Water Capacity @ 25℃ | wt% ≥ | 19.0-21.0 | 19.0-21.0 | |
| Equilibrium Ethylene Capacity | mg/g≤ | 3.0 | 3.0 | |
| Heat of Adsorption | BTU/lb of H2O | 1800 | 1800 | |
| Crush Strength | Point Contact | N ≥ | 20-58 | 80-130 |
| Variation Coefficient | - | 0.3 | 0.3 | |
| Attrition Rate | wt% ≤ | 0.1 | 0.1 | |
| Size Qualification | % ≥ | 98 | 98 | |
| Package Moisture | wt% ≤ | 1.5 | 1.5 | |
| The above interval values are based on the different grades of 3A | ||||
Applications of 3A Molecular Sieve Desiccant:
1. Used in oil gas, gas streams of unsaturated hydrocarbon material dehydration of 3A molecular sieve professional;
2. Drying of highly polar compounds, such as methanol and ethanol. It is also used for dehydration of liquid alcohol and solvents;
3. Used for professional kerosene and jet fuel drying;
4. Application of 3a molecular sieve in isopropanol dehydration; Used for natural gas dehydration and prevent the formation of COS;
5. Used in deep desiccation of cracked petroleum gases, such as ethylene, propylene, butadiene, acetylene, and natural gas, and of polar liquid, such as ethanol, LPG, and solvent;
6. Static,(non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled;
7. Drying of refrigerants; dehydration of food-grade carbon dioxide;
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