3A Molecular Sieve for Ethanol Dehydration

• CAS No.: 308080-99-1
• Shape: Beads
• Drying Method: Static Drying
• Model NO.: 3A
• Kind: Mineral Desiccant
• Sorbent: Molecular Sieves
• Desiccant: Chemical Desiccant
• Water Content , as Shipped: <1.5%
• Bulk Density: 0.72-0.8g/cm3
• Static Water Absorption: >20%
• Dew Point: <-73
• Equilibrium N2 Capacity: <0.2
• Dust (Turbidity Meter): <30
• Product Name: 3A Molecular Sieve for Ethanol Dehydration
• Transport Package: Cartons, Drums
• Specification: 0.5-0.9mm, 1.5-2.0mm
• Trademark: XINGFENG
• Origin: China
• HS Code: 3824999990

Product Description

3A Molecular Sieve for Ethanol Dehydration

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 
 Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien)
 Cracked Gas Drying
 Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required. 
 Drying of highly polar compounds, such as methanol and ethanol
 Drying of liquid alcohol
 Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
 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.

Package:

Package Type	Container Load Capacity		Delivery time	Quality Insurance	Payment Terms
	20 GP	40 GP
Steel drum, 150kg/drum	12000 kg	24000 kg	Within 7-10 days	Chinese National Standard; Offer quality assurance as request.	T/T, L/C, Paypal, West Union
Paper drum, 25kg/drum	9000 kg	18000 kg
Paper box, 25kg/box	13500 kg	27000 kg