XL-4 molecular sieve
Key words:
XL-4 molecular sieve
Classification:
Product Description
XL-4 molecular sieve is a sodium metal aluminosilicate with an A-type crystal structure. XL-4 molecular sieve can adsorb molecules with a critical diameter of no more than 4Å.
use
● It is mainly suitable for drying and purifying gases and liquids.
● Widely used for drying oil field gas, natural gas, etc.
● Used to prevent condensation on vacuum glass, etc.
Technical indicators
|
project |
unit |
Indicators |
|
|
chemical composition |
|
Na2O·Al2O3·2.0SiO2·4.5H2O |
|
|
Effective aperture |
Å |
~ 4.2 |
|
|
shape |
|
Spherical (granular) |
|
|
particle size |
mm |
⑦1.6~2.5 |
⑦3~5 |
|
bulk density |
Kg/L |
0.74±0.02 |
0.74±0.02 |
|
Compressive strength (point contact crushing force) |
N/pieces |
≥35 |
≥80 |
|
Static water adsorption capacity* |
wt% |
≥23.0 |
≥23.0 |
|
wear rate |
wt% |
≤0.2 |
≤0.2 |
|
Static methanol adsorption capacity |
wt% |
≥16 |
≥16 |
|
Product moisture content after packaging |
wt% |
≤1.5 |
≤1.5 |
* Equilibrium adsorption capacity of moisture under saturated sodium chloride water vapor at atmospheric pressure and 25°C.
Loading conditions
When filling the adsorbent into the adsorbent, ensure that it is carried out in a dry air environment. Normally, the relative humidity of the air when filling the adsorbent is not greater than 60%.
When using an air-powered adsorbent loader, the air must be dried and the air dew point should not be higher than -30°C.
working conditions
The working conditions of the adsorbent depend on the application of the adsorbent.
Normally, as the working pressure increases and the working temperature decreases, the adsorption capacity of the adsorbent increases.
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