3A Molecular Sieve

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3A molecular sieves are a potassium type A aluminosilicate crystal, meaning they can adsorb molecules with a critical diameter of less than 3 Å, and a molecular formula of K12[(AlO2)12(SiO2) 12 XH2O.

Application

This 3A molecular sieve can be used for drying unsaturated hydrocarbon materials, such as ethylrnr, propene, 1, 3-butadiene and cracked gas, effectively preventing hydrocarbon from co-adsorption.
It can be used for the drying of some polar liquids, such as methanol, ethanol, and organic hydroxyl compounds.
3A molecular sieves are also applicable for refrigerant drying.
It is an ideal desiccant used for N2-H2 mixed gas in the synthetic ammonia industry.
It can be used for the drying of food-grade CO2.

Features
This 3A molecular sieve features a high adsorption rate, high regeneration capacity, crushing strength and anti-pollution capacity, all of which increase the molecular sieve utilization efficiency and extend the molecular sieve's service life. Because of that, it is a necessary desiccant for gas liquid phase deep drying, refining and polymerization in petrochemical industries.

3A-EPG type

Shape	striped		trifoliate
Specification	1/16"	1/8"	1/8"	1/4"
Diameter (mm)	1.5-1.8	3.0-3.4	2.4-2.5	5.2-5.3
Bulk density(g/mL)	≥0.65	≥0.66	≥0.64	≥0.60
Crushing strength(N)	≥30	≥75	≥55	≥120
CO2 adsorption capacity (wt, %)	≤1.1	≤1.0	≤1.0	≤1.0
H2O adsorption capacity (wt, %)	≥20	≥20	≥20	≥20
Package water content (wt, %)	≤1.5	≤1.5	≤1.5	≤1.5
Adsorbable molecule	Molecule whose effective diameter < 3 angstroms, such as water, ammonia.
Discharged molecule	Molecule whose effective diameter >3 angstroms, such as ethane, CO2, methanol and so on.

3A-PPG type

Shape	spherical		striped
Specification	8X12 mesh	4X8 mesh	1/16"	1/8"
Diameter (mm)	1.7-2.4	3-5	1.5-1.8	3.0-3.4
Bulk density(g/mL)	≥0.66	≥0.65	≥0.65	≥0.65
Crushing strength(N)	≥30	≥75	≥32	≥80
CO2 adsorption capacity (wt, %)	≤1.1	≤1.0	≤1.3	≤1.3
H2O adsorption capacity (wt, %)	≥21	≥21	≥19	≥19
Package water content (wt, %)	≤1.5	≤1.5	≤1.5	≤1.5
Adsorbable molecule	Molecule whose effective diameter < 3 angstroms, such as water, ammonia.
Discharged molecule	Molecule whose effective diameter >3 angstroms, such as ethane, CO2, methanol and so on.