3A Molecular Sieve
Molecular Sieve
Chemical Formula：2/3K2O•1/3Na2O•Al2O3•2SiO2•9/2H2O
Si/Al ratio：SiO2/ Al2O3≈2
Pore diameter：About 3A
Use：Used as desiccant in petrochemical, pharmaceutical and other industries.
Technical parameter：
Parameter Unit Bead Pellet
Size mm 1.6-2.5 3-5 4-6 1.6 3.2
Water adsorption capacity
（25℃,RH50%） ％wt ≥20.5 ≥20.5 ≥20.5 ≥20 ≥20
Abrasion ％wt ≤0.2 ≤0.2 ≤0.2 ≤0.25 ≤0.25
Bulk density g/ml ≥0.68 ≥0.68 ≥0.68 ≥0.64 ≥0.64
Crush Strength N ≥25 ≥70 ≥80 ≥25 ≥60
Water content（575℃,3h） ％wt ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5
Ethylene adsorption capacity mg/g ≤3 ≤3 ≤3 ≤3 ≤3
Reactivation:
1、Removal of water: Hot gas at 200-350℃ and pressure 0.3-0.5㎏/㎝2 flows through the molecular sieve bed for 3-4 hours. let temperature decreases down to 110-180℃, cooling.
2、Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1.