Molecular Sieves

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Molecular Sieves Type 4A


Molecular Sieves Type 4A are crystalline metal aluminosilicates having an effective pore opening of 4 angstroms. Type 4A are the sodium form of the Type A crystal structures and represent the basic structure for the Type A family of Molecular Sieves.


  • Double - Glazing Industry
  • Drying of Olefin, Jet Fuel, Kerosene, Alkylation Feed, Hexane, Benzene, Ethylene, Propylene, Methanol, Ethanol, and Isopropanol.
  • Drying of Hydrogen Rich Gas, Hydrocracker Gas and Natural Gas.
  • Natural Gas H2S and CO2 Removal.
  • Drying of Fluorocarbons for Refrigeration Systems.

  • General Properties (Form in which supplied: Beads)
    Property NameProperty Value
    Mean Particle Diameters4 x 8 (4mm) and 8 x 12 (2mm)
    Nominal Pore Size4 Angstroms
    Bulk Density44 - 45 Lbs/Ft3
    Average Crushing Strength Under Increasing Pressure (Lb)
    4 x 8 mesh
    8 x 12 mesh

    Equilibrium Water Capacity (Theoretical)23% wt.
    Water Content (As Shipped)1.5% wt.(max)
    Heat of Adsorption (Max)1,800 Btu/lb H2o
    Specific Heat (Approx)0.23 Btu/lb/oF
    Recommended Temp. of Regeneration (oF)250-600


    Type 4A Molecular Sieves are delivered in drums containing 60 lbs, 150 lbs and 300 lbs net of product.

    Get Adobe PDF Reader | Download Data Sheet Molecular Sieves Type 4A