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4A Molecular Sieve Description

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

Technical Parameter:

Item	Unit	Target
Shape		Pellet		Sphere
Diameter	mm	1.5-1.7	3.0-3.3	1.6-2.6	2.0-5.0
Size ratio up to grade	%	≥ 98	≥ 98	≥ 96	≥ 96
Bulk Density	g/ml	≥ 0.60	≥ 0.60	> 0.60	≥ 0.60
Wear ratio	%	≤ 0.20	≤ 0.25	≤ 0.20	≤ 0.20
Crushing Strength	N	> 30	> 45	> 60	> 70
H2O adsorption	%	≥ 20.5	≥ 20.5	≥ 20.5	≥ 20.5
Methane adsorption	%	≥ 16	≥ 16	≥ 16	≥ 16
Packed Moisture	%	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5

Applications

Deep drying of air, Natural gas, alkane and refrigerant.
Generation and purification of argon.
Static dehydration of electronic element, pharmaceutical and unstable materials.
Desiccant for paint, dope and foul etc.

Type 4A molecular sieve is typically used in regenerable drying systems to remove water vapor or contaminants which have a smaller critical diameter than four angstroms.