4A Molecular Sieve adsorbent
Technical Specification of 4A Type Molecular Sieve
| Model | 4A | |||||
| Color | Light gray | |||||
| Nominal pore diameter | 4 angstroms | |||||
| Shape | Sphere | Pellet | ||||
| Diameter (mm) | 1.7-2.5 | 3.0-5.0 | 1.6 | 3.2 | ||
| Size ratio up to grade (%) | ≥98 | ≥98 | ≥96 | ≥96 | ||
| Bulk density (g/ml) | ≥0.72 | ≥0.70 | ≥0.66 | ≥0.66 | ||
| Wear ratio (%) | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ||
| Crushing strength (N) | ≥35/piece | ≥85/piece | ≥35/piece | ≥70/piece | ||
| Static H2O adsorption (%) | ≥22 | ≥22 | ≥22 | ≥22 | ||
| Static methanol adsorption(%) | ≥15 | ≥15 | ≥15 | ≥15 | ||
| Water content (%) | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ||
| Typical chemical formula | Na2O . Al2O3. 2SiO2. 4.5 H2O SiO2: Al2O3≈2 |
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| Typical application | a) Drying and removing of CO2 from natural gas, LPG, air, inert and atmospheric gases, etc. b) Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syn gas treating) c) Special types are used in the air break units of buses, trucks and locomotives. d) Packed in small bags, it maybe used simply as a packaging desiccant. |
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| Package | Carton box; Carton drum; Steel drum | |||||
| MOQ | 1 Metric Ton | |||||
| Payment terms | T/T; L/C; PayPal; West Union | |||||
| Warranty | a) By National Standard HGT 2524-2010 | |||||
| b) Offer lifetime consultation on problems occurred | ||||||
| Container | 20GP | 40GP | Sample order | |||
| Quantity | 12MT | 24MT | < 5kg | |||
| Delivery time | 3 days | 5 days | Stock available | |||
Regeneration of 4A Type Molecular Sieve
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 3A molecular sieve, a temperature of 200-230°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
Size
4A – Zeolites are available in beads of 1-2 mm(10×18 mesh), 2-3 mm(8×12 mesh), 2.5-5 mm(4×8 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.
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