Molecular Sieve 3Å

889 has facilities that produce a wide range of molecular sieves to meet the requirements set by our clients.
It includes 3Å, 4Å, 5Å, PSA-H (5A-98 TYPE), 13X and NaY.


A type of crystal structure potassium and aluminosilicate of alkali metal. It can adsorb molecules which critical diameter is not more than 3Å.


Widely applied in the drying process of natural gas and petroleum gas, especially in advanced drying of gases including petroleum pyrolysis gas, ethylene, propylene, butadiene, acetylene and liquids such as ethanol and acetone.


By increasing the temperature, it is capable of regeneration through the course of ventilation or exhaust.
• Regeneration temperature: 180-350°C
• Regeneration time: 3-6 hours.

Chemical Formula

K8Na4[(AlO2)12(SiO2)12] · XH2O




Can be packed as powder, globular or sticklike; product will be packed into sealed 40 kg iron drum to be stored in a dry environment.
Technical Specification 3-5mm Globular 1.6mm Sticklike
Adsorption Value of Static Water (%) ≥ 20 ≥ 20
Stacking Density (kg/l) ≥ 0.64 ≥ 0.60
Compression Strength (Newton /Granule) ≥ 60 ≥ 50
Abrasion Loss (%) ≥ 0.2 ≥ 0.2
Moisture on Delivery (%) ≤ 1.5 ≤ 1.5
Molecule It Can Adsorb Molecule whose critical diameter is less than 3Å.
Amount of H2O adsorbed is measured by every 100g of activated molecular sieve under normal pressure at 35°C.
PH value for application is 5-11

It can be used after regeneration if adsorbing moisture is being kept for a long time.
Maximum regeneration
temperature is 600°C.
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