Product Details
4*8 mesh drying adsorbent molecular sieve 3a for removing moisture.
Molecular Sieve type 3A is an alkali metal alumina-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 maximizes lifetime when dehydrating such molecules.
1.Specification.
Model
|
3A
|
Color
|
Light gray
|
Nominal pore diameter
|
3 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
|
≥50/piece
|
Static H2O adsorption (%)
|
≥21
|
≥21
|
≥21
|
≥21
|
Dynamic capacity (%)
|
≥20
|
≥20
|
≥20
|
≥20
|
Ethylene adsorption (‰)
|
≤3.0
|
≤3.0
|
≤3.0
|
≤3.0
|
Water content (%)
|
≤1.5
|
≤1.5
|
≤1.5
|
≤1.5
|
Typical Chemical Formula
|
0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O (SiO2 : Al2O3 ≈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.
|
2. Regeneration:
Chemxin 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°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
3. Size:
3A - Zeolite 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.
4. Attention:
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
Package & Shipment.
Production Process.
Company information.
Certificate.
FAQ.
1).Offer samples?
---Yes.
2). Is CHEMXIN a manufacturer or trading company?
---Manufacturer.
3). How long does it take to delivery?
---In 7-10 days after receipt of 30% deposit.
4). What's your payment term?
---TT, Paypal, Western Union, L/C etc
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