Payment & Shipping Terms:
|Size:||2.0-3.0mm, 3.0-5.0mm,4.0-6.0mm||Package Moisture:||≤ 1.5%|
|Static Water Adsorptivity:||≥ 22%||Compressive Strength:||≥ 135 N/particle|
molecular sieve type 4a,
4 angstrom molecular sieves
4A Molecular Sieve For Removal Of Methanol From Gas Streams
Molecular sieve 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). VODA type 4A molecular sieve will adsorb most molecules with a kinetic diameter of fewer 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.
Typical Chemical Formula
Na2O Al2O3 2.0SiO2 4.5H2O
SiO2: Al2O3 ≈2
|Molecular Sieve 4A Typical Physical Properties|
|Items||Unit||8*12 Mesh||4*6 Mesh|
|Bulk Density||g/ml ≥||0.70-0.82||0.65-0.80|
|Equilibrium Water Capacity @ 25℃||wt% ≥||20.5-22.5||20.5-22.5|
|Equilibrium Methanol Capacity||wt% ≥||15.0||15.0|
|Heat of Adsorption||BTU/lb of H2O||1800||1800|
|Crush Strength||Point Contact||N ≥||30-80||85-160|
|Attrition Rate||wt% ≤||0.1||0.1|
|Size Qualification||% ≥||98||98|
|Package Moisture||wt% ≤||1.5||1.5|
|The interval value of the indexes above are on the basis of the different grade of Molecular Sieve 4A|
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) Special types are used in the air break units of buses, trucks and locomotives
4) Packed in small bags, it may be used simply as a packaging desiccant
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2.OEM&ODM service for your unique idea with absolutely convenient.
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5. Sample & OEM service is available
6. After-sales service. any question will be settled within 3 days
The molecular sieve shall be stored at room temperature, in which the relative humidity does not exceed 90%, and be not exposed to air, and prevented against water, acids and alkalizes.
1, 25KG/carton; 2, 35KG/carton drum; 3, 150KG/Sealed iron drum
About 3-15 days after the payment.
Contact Person: cooperfan