Molecular Sieve 3A for Gas and Liquid Drying

• Formula: 0.4K2o 0.6na2o
• Shape: Sphere
• Kind: Mineral Desiccant
• Sorbent: Molecular Sieves
• Desiccant: Physical Desiccant
• Transport Package: Carton
• Model NO.: MS-001
• Specification: 1.7-2.5mm, 3-5mm, 1.6mm, 3.2mm
• Trademark: FANXI or OEM
• Origin: China
• HS Code: 3824999990
• Production Capacity: 10000 Tons/Year

Product Description

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 maximizes lifetime when dehydrating such molecules
 
Typical Chemical Formula
0.4K₂O 0.6Na₂O Al₂O₃ 2.OSiO₂ 4.5H₂O
SiO₂ : Al₂O₃ ≈2



Technical Parameter

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	≥98	≥98
Bulk density	g/ml	≥0.65	≥0.65	≥0.70	≥0.70
Wear ratio	%	≤0.20	≤0.25	≤0.10	≤0.10
Crushing strength	N	≥45/cm	≥60/cm	≥30/p	≥70/p
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

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

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 - 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 1.6", 3.2". 

 

Attention

To avoid damp and pre-adsorption of organic before running, or must to be reactivated.