Categories
Price: | US $ 1700/Ton |
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Trade Terms: | FOB |
Min Order: | 1/Ton |
Pay Type: | L/C,T/T |
Prod Model: | 3A molecular sieve |
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Markets: | Eastern Europe,Southeast Asia,Africa,Mid East,Eastern Asia |
Desiccant: | Chemical Desiccant |
Sorbent: | Molecular Sieves |
Shape: | Sphere |
pingxiang Global 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.
FORMULA
0.45 K2O. 0.55 Na2O. Al2O3.2 SiO2.4.5H2O
SiO2: Al2O3 =2
TYPICAL APPLICATION
1)Drying of unsaturated hydrocarbons (e. G. Ethylene, propylene, butadien)
2)Cracked Gas Drying
3)Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required.
4)Drying of highly polar compounds, such as methanol and ethanol
5)Drying of liquid alcohol
6)Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
7)Drying of refrigerants
REGENERATION
Global 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 200-230C is required. A properly regenerated molecular sieve can give moisture dew points below -100C.
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.
Item | Unit | Technical data | |||
Shape | Pellet | Sphere | |||
Diameter | mm | 1.5-1.7 | 3.0-3.3 | 1.7-2.5 | 3.0-5.0 |
Size ratio up to grade | % | ≥ 98 | ≥ 98 | ≥ 96 | ≥ 96 |
Bulk density | g/ml | ≥ 0.64 | ≥ 0.64 | ≥ 0.68 | ≥ 0.68 |
Wear ratio | % | ≤ 0.20 | ≤ 0.25 | ≤ 0.10 | ≤ 0.10 |
Crushing strength | N | ≥ 45/cm | ≥ 60/cm | ≥ 30/piece | ≥ 70/piece |
Static water adsorption | % | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 |
Ethylene adsorption | % | ≤ 3.0 | ≤ 3.0 | ≤ 3.0 | ≤ 3.0 |
Water content, as shipped | % | ≤ 1.5 | ≤ 1.5 | ≤ 1.5 | ≤ 1.5 |