Molecular Sieve 4a

The pore size for 4A molecular sieve is 4 A0 . It is mainly used to adsorb water, methanol, ethanol, sulfureted hydrogen, carbon dioxide, ethylene, propylene, does not adsorb any larger molecular than 4 A0, and often used as desiccant in industrials.

Technical Parameter
Item Unit Target
Shape   Pellet Sphere
Diameter mm 1.5-1.7 3.0-3.3 1.7-2.5 3.0-5.0
Size ratio up to grade % min 98 98 96 96
Bulk density g/ml min 0.60 0.60 0.60 0.60
Wear ratio % max 0.20 0.25 0.20 0.20
Crushing strength N min 30/cm 45/cm 60/p 70/p
Static adsorption % min 20.5 20.5 20.5 20.5
Methane adsorption % min 16 16 16 16
Packing water % max 1.5 1.5 1.5 1.5


Typical Application :
  • Deep drying of air, natural gas, alkane and refrigerant.
  • Generation and purification of argon.
  • Static dehydration of electronic element, pharmaceutical and unstable materials.
  • Desiccant of paint, dope and fuel etc.
  • 4A molecular sieve is mainly used to make static dehydration in airtight gas or liquid system, it can remove the moleculars of ethyl alcohol, hydrogen sulphide, carbon dioxide, ethylene, acrylica, and also dry the alkane.
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