3A type Molecular Sieve wildly used in Technical Gas Dehydration


3A Type MS - Molecular Sieves 3A

1. Brief Description

3A Zeolite Molecular Sieve (ZMS) also called be "KA" or "Potassium" Molecular Sieve, crystal structure is A type, and the pore opening of 3 angstroms (1 angstroms equals to 0.1 nanometers). 


2. Size and Package

Grade: Common 3A, 3A IG Grade, 3A Ethanol Grade, etc.

Typical Size: 8x12 mesh and 4x8 mesh beads, 1/8" and 1/16" pellets

Typical Packing: 150kg beads in iron drum, 125kg pellets in iron drum


3. Application Fields

  • Drying of unsaturated hydrocarbon, i.e. ethylene, propylene, butadiene, acetylene and such liquefied petroleum
  • Dehydration of Natural Gas or Methane (For minimum COS formation)
  • Dry polar liquid, i.e. methanol, ethanol, and many solvent (We also provided special type 3A-E for this application)
  • Removing moisture in paint and PU Plastic
  • Dehydration of refrigerant (We also provided special type 3A-R)
  • Dehydration of technical gases, i.e. CO2, N2.


4. Storage and Regeneration

Adsorbent product must be stored in a dry location to prevent pre-adsorption of water and some other impurities. 

Zeolite Molecular Sieve packages when opened should be resealed to prevent contamination of the product. Whenever possible, rotate stock to use oldest material first. If stored properly, this product have an indefinite shelf life, however, material packaged in Super Sacks should be retested for Total Volatiles after 12 months. Material in Drums should be retested after 36 months. 
The Zeolite Molecular Sieve product should be regenerated after a certain period of adsorption. The appropriate regenerated temperature would be better below 330℃. 

5. Technical Data Sheets (TDS for Molecular Sieve 3A) 

MolsivCN_Technical Data Sheet_Molecular Sieve 3A_TDS
3A Molecular Sieve Technical Data Sheets --- Pls feel free to ask us for more imformations!

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