4A Zeolite Desicant Molecular Sieve Absent for Gas Drying Purification

Model NO.
dia1.6-2.5, dia2-3, dia3-5 and other sizes
Absent
Gas Absent
Wear Ratio
1%
Water Static Absorbent
20%
Bulk Density
0.67
Packing Water
1.5%
Trademark
MI′AO
Transport Package
Drum and Pallet
Specification
dia1.7-2.5mm, dia1-2mm dia3-5mm
Origin
China
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Introduction
Molecular Sieve type 4A (Angstrom) is an alkali alumina silicate, obtained through synthesis of type A zeolite in sodic form. 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). Galaxychem type 4A molecular sieve will absorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger.
Formula: Na2O·Al2O3·2SiO2·4.5H2O  
Silica-alumina Ratio: SiO2/ Al2O3≈2
Aperture: 4A

Application
Will absorb in sequence of absorption rate, argon, krypton, xenon, ammonia, carbon monoxide, C2H4, C2H2, CH3OH, C2H5OH, CH3en2, CS2, CH3CL, CH3Br, and carbon dioxide.
1. Deep drying of air, natural gas, alkane and refrigerant.
2. Generation and purification of argon.
3. Static dehydration of electronic element, pharmaceutical and unstable materials.
4. Desiccant of paint, PU Plastic, dope and fuel etc.

Technical specification

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 % min 98 98 96 96  
Bulk density g/ml min 0.67~0.75  
Wear ratio % max 0.2 0.25 0.2 0.2  
Crushing strength N min 30/cm 45/cm 60/p 70/p  
Static absorption % min 20.5 20.5 20.5 20.5  
strength compression garrulous strength N/mm2 25 25 40 80  
 
Coefficient of variation 0.3 0.3 0.3 0.3  
Methanol absorption % min 16 16 16 16  
Packing water % max 1.5 1.5 1.5 1.5  

Regeneration
1. Removing the moisture:
You May use the dry gas like nitrogen, the air, the hydrogen, the saturated hydrocarbon and heat the gas up to 150-320 ºC.Firstly you need let the hot gas purge through the molecular sieve bed with the pressure of 0.3-05kg/m2 for 3 to 4 hours. Then change to dry cold gas for 2-3 hour, at last you need isolate the molecular sieve from air and cool it to room temperature.
2. Removing the organics:
You can use the water vapor to take the place of organics, then use the method 1.
You can also use the hot water vapor or inner gas pass through the molecular sieve under the temperature of 200-350ºC (couldnt use the gas which will explore when to mix with the adsorbed organics).
3. Removing the gas
You can reduce the pressure to regenerate the molecular sieve.

Shipping and Packing

Package Type Container Load Capacity Delivery time Payment Terms
20 GP 40 GP
Steel drum, 150kg/drum 12000 kg 24000 kg Within 10 days T/T, L/C, Paypal, West Union
Paper drum, 25kg/drum 9000 kg 18000 kg