Factory price Zeolite molecular sieve 3a for ethanol adsorbent, drying natural gas
Product Description
Chemxin Molecular Sieve type 3A is an alkali metal aluminosilicate; 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.
Technical Parameter:
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)
≥55/piece
≥85/piece
≥30/piece
≥50/piece
Static H2O adsorption (%)
≥21
≥21
≥21
≥21
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.
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. 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. Attention: To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
