Introduction
XINTAO Molecular Sieve type 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.
Technical Parameter
| Model |
3A |
| Color |
Beige |
| Nominal pore diameter |
3 angstroms |
| Shape |
Sphere |
Pellet |
| Diameter (mm) |
1.7-2.5 |
3.0-5.0 |
1.6 |
3.2 |
| Size ratio up to grade (%) |
鈮98 |
鈮98 |
鈮96 |
鈮96 |
| Bulk density (g/ml) |
鈮0.72 |
鈮0.70 |
鈮0.66 |
鈮0.66 |
| Wear ratio (%) |
鈮0.20 |
鈮0.20 |
鈮0.2 |
鈮0.2 |
| Crushing strength (N) |
鈮55/piece |
鈮85/piece |
鈮30/piece |
鈮40/piece |
| Static H2O adsorption (%) |
鈮21 |
鈮21 |
鈮21 |
鈮21 |
| Ethylene adsorption (鈥) |
鈮3.0 |
鈮3.0 |
鈮3.0 |
鈮3.0 |
| Water content (%) |
鈮1.5 |
鈮1.5 |
鈮1.5 |
鈮1.5 |
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| Typical Chemical Formula |
0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O
SiO2 : Al2O3 鈮2 |
| Typical Application |
a) Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien)
b) Cracked Gas Drying
c) Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required.
d) Drying of highly polar compounds, such as methanol and ethanol
e) Drying of liquid alcohol
f) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
g) Drying of CNG. |
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| Package : |
Carton box; Carton drum; Steel drum |
| MOQ: |
1 Metric Ton |
| Payment Terms: |
T/T; L/C; PayPal; West Union |
| Warranty: |
a) By National Standard GBT 10504-2008 |
| b) Offer lifetime consultation on problems occurred |
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| Container |
20GP |
40GP |
Sample order |
| Quantity |
12MT |
24MT |
< 5kg |
| Delivery Time |
3 days |
5 days |
Stock available |
Regeneration
XINTAO molecular sieve Type 3A 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 3A molecular sieve, a temperature of 200-230掳C is required. A properly regenerated molecular sieve can give moisture dew points below -100掳C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
Size
3A - 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.
