Customization: | Available |
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Shape: | Sphere, Pellet |
Drying Method: | Static Drying |
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Products Introduction of 4A Type Molecular Sieve
Molecular Sieve type 4A is an alkali alumino silicate; it is the sodium form of the Type A crystal structure. 4A molecular sieve has an effective pore opening of about 4 angstroms (0.4nm). Type 4A molecular sieve 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 dioxyde and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.
Product Parameters
Technical Specification of 4A Type Molecular Sieve
Model |
4A |
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Color |
Light gray |
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Nominal pore diameter |
4 angstroms |
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Shape |
Sphere |
Pellet |
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Diameter (mm) |
1.7-2.5 |
3.0-5.0 |
1.6 |
3.2 |
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Size ratio up to grade (%) |
≥98 |
≥98 |
≥96 |
≥96 |
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Bulk density (g/ml) |
≥0.72 |
≥0.70 |
≥0.66 |
≥0.66 |
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Wear ratio (%) |
≤0.20 |
≤0.20 |
≤0.20 |
≤0.20 |
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Crushing strength (N) |
≥35/piece |
≥85/piece |
≥35/piece |
≥70/piece |
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Static H2O adsorption (%) |
≥22 |
≥22 |
≥22 |
≥22 |
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Static methanol adsorption(%) |
≥15 |
≥15 |
≥15 |
≥15 |
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Water content (%) |
≤1.0 |
≤1.0 |
≤1.0 |
≤1.0 |
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Typical chemical formula |
Na2O . Al2O3. 2SiO2. 4.5 H2O |
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Typical application |
a) Drying and removing of CO2 from natural gas, LPG, air, inert and atmospheric gases, etc. |
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Package |
Carton box; Carton drum; Steel drum |
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MOQ |
1 Metric Ton |
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Payment terms |
T/T; L/C; PayPal; West Union |
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Warranty |
a) By National Standard HGT 2524-2010 |
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b) Offer lifetime consultation on problems occurred |
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Container |
20GP |
40GP |
Sample order |
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Quantity |
12MT |
24MT |
< 5kg |
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Delivery time |
3 days |
5 days |
Stock available |
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.
AttentionTo avoid damp and pre-adsorption of organic before running, or must to be reactivated.