Zeolite 3A Molecular Sieve Desiccant Bead for Ethylene Propylene Deep Drying
Description of 3A Molecular Sieve Desiccant:
3A molecular sieve is mainly used to adsorb water, and does not adsorb any molecules with a diameter greater than 3Å. According to the characteristics of industrial applications, molecular sieve has fast adsorption speed, regeneration times, crushing strength and anti-pollution ability, which improves the utilization efficiency of molecular sieve and prolongs Molecular sieves have a long service life and are necessary adsorption materials for gas-liquid phase deep drying, refining and polymerization in the petroleum and chemical industries.
Regeneration conditions:
Can be heated and at the same time blowing or vacuuming method, regeneration, and reuse.
1. Removal of water: available dry gas, such as nitrogen, hydrogen, or ordinary air heating to 150-300 ℃ under pressure into the molecular sieve bed, and then to the adsorbent dry cold gas, isolated air cold to room temperature;
2. Removal of organic matter: water vapor can be used to replace the adsorption material from the molecular sieve, and then heated to (1), regeneration can also be in the superheated steam or inert gas through regeneration;
3. Removed gas substances can be regenerated by decompression removal
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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