High adsorption 4a desiccant 1.6mm 3.2mm pellet zeolite 4a molecular sieve for fire escape smoke hood
XC3002 is an alkali metal aluminosilicate with a pore size of 4Å, featuring the sodium form of the Type A crystal structure. It adsorbs molecules with critical diameters of 4Å or less, such as water, methanol, ethanol, ethylene, propylene, hydrogen sulfide, sulfur dioxide, carbon dioxide, and ammonia. It exhibits superior selective adsorption for water molecules.
Chemxin XC3002 features a highly uniform pore size distribution, high compressive strength, low attrition, and high-temperature resistance, ensuring it does not easily pulverize during long-term operation. It offers consistent batch-to-batch performance, supports repeated high-temperature regeneration, and boasts a long service life.
Technical Parameter:
| Model | 4A | |||
| Color | Light gray | |||
| Nominal pore diameter | 4 angstroms | |||
| Shape | Sphere | Pellet | ||
| Diameter (mm) | 1.7-2.5(8*12 mesh) | 3.0-5.0(4*8 mesh) | 1.5-1.7(1/16 inch) | 3.0-3.3(1/8 inch) |
| Size ratio up to grade (%) | ≥98 | ≥98 | ≥98 | ≥98 |
| Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.60 | ≥0.60 |
| Wear ratio (%) | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.50 |
| Crushing strength (N/PC) | ≥35 | ≥100 | ≥40 | ≥80 |
| Static H2O adsorption (%) | ≥22 | ≥22 | ≥22 | ≥22 |
| Static methanol adsorption (‰) | ≥15 | ≥15 | ≥15 | ≥15 |
| Water content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
| Typical Chemical Formula | Na2O . Al2O3 . 2SiO2 . 4.5 H2O (SiO2 : Al2O3 ≈2) | |||
| Typical Application | a) Deep drying of natural gas, petroleum gas, and compressed air. b) Air separation and industrial gas purification/drying. c) Deep dehydration of lithium-ion battery electrolyte solvents, fine fluorine chemicals, and refrigerantss. d) Static drying for pharmaceutical packaging, semiconductors, electronic components. | |||
Regeneration:
Chemxin molecular sieve Type 4A can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes.
To remove moisture from a 4A molecular sieve, a temperature of 250-280°C is required. A properly regenerated molecular sieve can give moisture dew points below -60°C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
Size:
4A - Zeolite are available in beads of 1-2 mm(10x18 mesh), 2-3 mm(8x12 mesh), 2.5-5 mm(4x8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.
Attention:
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
