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  • 产品名称:Molecular Sieve 4A

  • 产品型号:4A
  • 产品厂商:NKCHEM
  • 产品文档:
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简单介绍:
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).type 4A molecular sieve material will adsorb most molecules with a kinetic diameter of fewer than 4 angstroms and exclude those larger.
详情介绍:

Parameters of 4A Molecular Sieve

Model 4A
Nominal Pore Diameter 4 angstroms
Shape Sphere(ball) Pellet
Diameter 1.7-2.5 3.0-5.0 1.6 3.2
Size ratio up to grade (%) ≥98 ≥98 ≥96 ≥96
Bulk density (g/ml) ≥0.72 ≥0.75 ≥0.66 0.66
Wear ratio (%) ≤0.20 ≤0.20 ≤0.20 ≤0.20
Crushing strength (N) ≥45/piece ≥85/piece ≥30/piece ≥60/piece
Static H2O adsorption (%) ≥21.5 ≥21.5 ≥21.5 ≥21.5
Water content (%) ≤1.0 ≤1.0 ≤1.0 ≤1.0

Molecular Sieve Type 4A Applications

Typical Chemical Formula Na2O. Al2O3. 2SiO2. 4.5 H2O
SiO2: Al2O3≈2
Typical Application a)Drying and removing of CO2 from natural gas, LPG, air, inert and atmospheric gases, etc.
b) Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syngas treating)
c) Special types are used in the air break units of buses, trucks and locomotives.
d) Packed in small bags, it may be used simply as a packaging desiccant.


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