5A Molecular Sieves for Air Drying
1.High quality
2.Shape:Sphere/Pellet
3.Excellent adsorbability
4.Reasonable price
5A Molecular Sieves for Air Drying:
Molecular Sieve type 5A is an alkali alumino silicate; it is the sodium form of the Type A crystal structure. 5A molecular sieve has an aperture about 5 angstroms (0.5nm).It doesn't absorb any molecules larger than 5A, including propane. It absorbs water, methanol, ethanol, sulfureted hydrogen, sulfur dioxide, carbon dioxide, ethylene, propylene mainly.
Typical Chemical Formula: Na
2
O. Al
2
O
3
. 2 SiO
2
. n H
2
O
Item
Index
Appearance
strip
spherical
Diameters mm
1.5-1.7
3.0-3.3
1.0-1.6
3.0-5.0
Size ratio to grade %
≥98
≥98
≥96
≥96
Bulk density g/ml
≥0.60
≥0.60
≥0.60
≥0.60
Abrasion loss %
≤0.20
≤0.25
≤0.20
≤0.20
Crushing strength N
≥30/CM
≥45/CM
≥60/P
≥70/P
Static water absorption %
≥20.5
≥20.5
≥20.5
≥20.5
Water in packaging %
≤1.5
≤1.5
≤1.5
≤1.5
Application
The strong ionic forces of the divalent calcium ion makes it an excellent adsorbent to remove water, CO2, H2S from sour natural gas streams, while minimising COS formation. Light mercaptans are also adsorbed.
It is also used for the separation of normal- and iso paraffins.
Production of high purity N2, O2, H2 and inert gases from mixed gas streams.
Regeneration
Molecular sieve Type 5A 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 5A molecular sieve, a temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
Size
5A - Zeolites are available in beads of 1-2 mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6, 3.2.
Attention
To avoid damp and pre-adsorption of organic before running, or must to be reactivated
For more details, please feel free to contact with me.
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