3A type Molecular Sieve

3A type Molecular Sieve

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3A type Molecular Sieve  Introduction Molecular Sieve type 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.  Technical Parameter Model 3A Color Light gray Nominal pore diamete...


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    3A type Molecular Sieve

     Introduction

    Molecular Sieve type 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.

     Technical Parameter

    Model 3A
    Color Light gray
    Nominal pore diameter 3 angstroms
    Shape Sphere Pellet
    Diameter (mm) 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 ≥0.70 ≥0.66 ≥0.66
    Wear ratio (%) ≤0.20 ≤0.20 ≤0.2 ≤0.2
    Crushing strength (N) ≥55/piece ≥85/piece ≥30/piece ≥40/piece
    Static H2O adsorption (%) ≥21 ≥21 ≥21 ≥21
    Ethylene adsorption (‰) ≤3.0 ≤3.0 ≤3.0 ≤3.0
    Water content (%) ≤1.5 ≤1.5 ≤1.5 ≤1.5
     
    Typical Chemical Formula 0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O
    SiO2 : Al2O3 ≈2
    Typical Application a) Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien)
    b) Cracked Gas Drying
    c) Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required.
    d) Drying of highly polar compounds, such as methanol and ethanol
    e) Drying of liquid alcohol
    f) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
    g) Drying of CNG.
     
    Package : Carton box; Carton drum; Steel drum
    MOQ: 1 Metric Ton
    Payment Terms: T/T; L/C; PayPal; West Union
    Warranty: a) By National Standard GBT 10504-2008
    b) Offer lifetime consultation on problems occurred
     
    Container 20GP 40GP Sample order
    Quantity 12MT 24MT < 5kg
    Delivery Time 3 days 5 days Stock available

     Regeneration

    Molecular sieve Type 3A can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes. 
    To remove moisture from a 3A molecular sieve, a temperature of 200-230°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C.
    The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

     Size 
    3A – Zeolites are available in beads of 1-2 mm(10×18 mesh), 2-3 mm(8×12 mesh), 2.5-5 mm(4×8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.

     Attention
     To avoid damp and pre-adsorption of organic before running, or must to be reactivated.


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