Molecular Sieve 5A
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Molecular Sieve 5A

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Adsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purification


Adsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purification

Chemxin Molecular Sieve type 5A is an alkali aluminosilicate; it is the calcium form of the Type A crystal structure. Type 5A has an effective pore opening of 5 angstroms (0.5 nm). It will adsorb molecules with a kinetic diameter of less than 5 Angstrom and exclude those larger. It is especially suitable for PSA adsorption applications where it may be used for the separation of normal- and iso- paraffins (C4 to C6 species), in PSA hydrogen purification and in oxygen concentrators.


Technical Parameter:

Model 5A
Color Light gray
Nominal pore diameter 5 angstroms
Shape Sphere Pellet
Diameter (mm) 1.7-2.5(8*12 mesh) 3.0-5.0(4*8 mesh) 1.6(1/16 inch) 3.2(1/8 inch)
Size ratio up to grade (%) ≥98 ≥98 ≥96 ≥96
Bulk density (g/ml) ≥0.70 ≥0.70 ≥0.68 ≥0.68
Wear ratio (%) ≤0.20 ≤0.20 ≤0.40 ≤0.40
Crushing strength (N) ≥35/piece ≥85/piece ≥30/piece ≥75/piece
Static H2O adsorption (%) ≥21 ≥21 ≥21 ≥21
Static Hexane adsorption (‰) ≥12 ≥12 ≥12 ≥12
Water content (%) ≤1.5 ≤1.5 ≤1.5 ≤1.5
Typical Chemical Formula

0.7CaO . 0.3Na2O . Al2O3 . 2SiO2 . 4.5H2O (SiO2 : Al2O3 ≈2)

Typical Application

a) The strong ionic forces of the divalent calcium ion makes it an excellent adsorbent to remove water, CO2, H2S form sour natural gas streams, while mini missing COS formation. Light mercaptans are also adsbored.

b) Separation of  normal-and iso paraffin's
c) Production of high purity N2, O2,H2 and inert gases from mixed gas streams.
d) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.


Regeneration:
Chemxin 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 -60°C, or mercaptan or CO2 below 2 ppm.
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 1.6mm, 3.2mm.
Attention:
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.



Adsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purification图层12


Adsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purificationAdsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purificationAdsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purificationAdsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purificationAdsorbents zeolite molecular sieve 5a 1.7-2.5mm 3-5mm desiccant for psa hydrogen purification

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