Molecular Sieve 4A is an alkali aluminosilicate; it is the sodium form of the Type A crystal structure. Molecular sieve 4A has an effective pore opening of about 4 angstroms (0.4nm). It will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such adsorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxide and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.
Recommendation
1. Drying and removing of CO2 from natural gas, LPG, air, inert and
atmospheric gases, etc.
2. Removal of hydrocarbons, ammonia and methanol from gas streams
(ammonia syn gas treating).
3. Dehydration of refrigerant and air in the air break units of buses,
trucks and locomotives.
4. Packed in small bags for packing desiccant for foods, etc
Techincal Specification
| Property | Unit | Φ3-5 | Φ1.6-2.5 | 1/8″ | 1/16″ |
| Static Water Adsorption | ％wt | ≥21.5 | ≥21.5 | ≥21.5 | ≥21.5 |
| Crush Strength | N | ≥80 | ≥30 | ≥70 | ≥30 |
| Buck Density | g/ml | ≥0.7 | ≥0.7 | ≥0.65 | ≥0.65 |
| Loss on Attriation | ％wt | ≤0.1 | ≤0.1 | ≤0.3 | ≤0.3 |
| Particle Ratio | ％ | ≥99 | ≥97 | ~ | ~ |
| Loss on Ignition | ％wt | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
Packing
| Type | Carton | Drum | Super sack |
| Bead | 25 kg / 55 lb | 150 kg / 330 lb | 1000kg / 2200 lb |
| Pellet | 25 kg / 55 lb | 150 kg / 330 lb | 1000kg / 2200 lb |