High Quality Adsorbent Zeolite 3A Molecular Sieve

Short 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 maximises lifetime when dehydrating such molecules.

Product Detail

Product Tags

Technical Specification of 3A Molecular Sieve

Model 3A
Color Light gray
Nominal pore diameter 3 angstroms
Shape Sphere Pellet
Diameter (mm) 1.7-2.5 3.0-5.0 1.6 3.2
Size ratio up to grade (%) ≥98 ≥98 ≥96 ≥96
Bulk density (g/ml) ≥0.72 ≥0.70 ≥0.66 ≥0.66
Wear ratio (%) ≤0.20 ≤0.20 ≤0.2 ≤0.2
Crushing strength (N) ≥55/piece ≥85/piece ≥30/piece ≥40/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.
Package Carton box; Carton drum; Steel drum
MOQ 1 Metric Ton
Payment terms T/T; L/C; PayPal; West Union
Warranty a) By National Standard GBT 10504-2008
b) Offer lifetime consultation on problems occurred
Container 20GP 40GP Sample order
Quantity 12MT 24MT < 5kg
Delivery time 3 days 5 days Stock available

Regeneration of 3A Molecular Sieve

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.


3A – Zeolites are available in beads of 1-2 mm(10×18 mesh), 2-3 mm(8×12 mesh), 2.5-5 mm(4×8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.

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

  • Previous:
  • Next:

  • Write your message here and send it to us