Natural gas drying molecular sieve 4a
1.Excellent quality of Molecular Sieves
2.Size:Dia.4-6mm
3.ISO 9001:2008
Molecular Sieves 4A
Zeolite Molecular Sieves is an alkali alumina silicate, it is the sodium form of the Type A crystal structure.4A molecular sieves has an effective pore opening of about 4 angstroms(0.4nm) ANFA type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those large. Such absorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxyde and straight chain hydrocarbon. Branched chain hydrocarbons and aromatics are excluded.
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
%
≥98
≥98
≥96
≥96
Bulk density
g/ml
≥0.68
≥0.68
≥0.68
≥0.68
Wear ratio
%
≤0.20
≤0.40
≤0.20
≤0.20
Crushing strength
N
≥30/cm
≥45/cm
≥30/piece
≥70/piece
Static water adsorption
%
≥20.5
≥20.5
≥21.0
≥21.0
Static methanol adsorption
%
≥15.0
≥15.0
≥15.0
≥15.0
Water content, as shipped
%
≤1.5
≤1.5
≤1.5
≤1.5
Application of molecular sieve 4A:
1.Desiccant for gas and other material;
2.Adsorbent for Air purification and for the separation of methane, ethane and propane
Reactivation of molecular sieve 4A:
1.Removal of water: Hot gas at 200-350°C and pressure 0.3-0.5Kg/cm2 flows through the molecular sieve bed for 3-4 h. let temperature decreases down to 110-180°C, cooling
2. Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1
Conservation of molecular sieve 4A:
1.Room temperature, humidity <90%, non-expose to air;
2.Non-contact with water, acid and alkali
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