5A Molecular Sieve
Introduction
Molecular Sieve type 5A is an alkali alumino silicate; 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 adsorber 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.
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Model |
5A |
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Color |
Light gray |
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Nominal pore diameter |
5 angstroms |
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Shape |
Sphere |
Pellet |
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Diameter (mm) |
1.7-2.5 |
3.0-5.0 |
1.6 |
3.2 |
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Size ratio up to grade (%) |
>98 |
>98 |
>96 |
>96 |
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Bulk density (g/ml) |
>0.72 |
>0.70 |
>0.66 |
>0.66 |
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Wear ratio (%) |
<0.20 |
<0.20 |
<0.20 |
<0.20 |
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Crushing strength (N) |
>45/piece |
>100/piece |
>40/piece |
>75/piece |
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Static H2O adsorption (%) |
>22 |
>22 |
>22 |
>22 |
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Water content (%) |
<1.0 |
<1.0 |
<1.0 |
<1.0 |
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Typical Chemical Formula |
0.7CaO
. 0.3Na2O . Al2O3 . 2SiO2 .
4.5H2O |
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Typical Application |
a)
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
mini missing COS formation. Light mercaptans are also adsorbed. |
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Package : |
Carton box; Carton drum; Steel drum |
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MOQ: |
1 Metric Ton |
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Payment Terms: |
T/T; L/C; PayPal; West Union |
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Warranty: |
a) By National Standard GB_13550-1992 |
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b) Offer lifetime consultation on problems occurred |
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Container |
20GP |
40GP |
Sample order |
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Quantity |
12MT |
24MT |
< 5kg |
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Delivery Time |
3 days |
5 days |
Stock available |
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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 degree C is
required. A properly regenerated molecular sieve can give moisture dew points
below -100 degree C, or mercaptan or CO2 levels 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.
