3A Molecular Sieve-Shanghai TOP Molecular Sieve Co., Ltd.

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3A Molecular Sieve

3A adsorbent, a potassium-exchanged form of the type A molecular sieve, is an alkali metal aluminosilicate. 3A adsorbent will adsorb molecules with critical diameters up to 3 angstroms type.

APPLICATIONS

- 3A adsorbent is preferred for commercial dehydration of unsaturated hydrocarbon streams, such as cracked gas, ethylene, propylene, and cracked liquid olefins.

- Drying of polar liquids (methanol, ethanol, and hydroxide organic compound ).

- Drying refrigerants.

- Drying N₂-H₂ mixtures made by cracking of NH₃_.

CHEMICAL FORMULA: K₁₂[(AlO₂)₁₂(SiO₂)₁₂ XH₂O

TYPICAL PROPERTIES:

3A-EPG

Properties	Unit	Pellet		Trisiv
Particle Sizes		1/16”	1/8”	1/8”	1/4”
Particle Diameter	mm	1.5-1.8	3.0—3.4	3.0-3.4	6.0-6.6
Bulk Density	kg / m³	≥660	≥660	≥640	≥600
Crush Strength	N	≥40	≥90	≥90	≥130
Equilibrium H2O Capacity	wt, %	≥21	≥21	≥21	≥21
Moisture Content	wt, %	≤1.5	≤1.5	≤1.5	≤1.5

Molecules adsorbedMolecules with an effective diameter of <3 angstroms, e.g., H2O

Molecules excludedMolecules with an effective diameter of >3 angstroms, e.g., C2H4, CO2, and CH3OH

Measured at 17.5 mm Hg and 25 °C. The normal equilibrium water capacity in water saturated gas.

3A-PPG

Properties	Unit	Bead		Pellet
Particle Sizes		8X12 目	4X8 目	1/16”	1/8”
Particle Diameter	mm	1.7-2.4	3.0-5.0	1.5—1.8	3.0—3.4
Bulk Density	kg / m³	≥680	≥680	≥680	≥660
Crush Strength	N	≥30	≥90	≥40	≥90
CO2 Capacity	wt, %	≤2.0	≤2.0	≤2.0	≤2.0
Equilibrium H2O Capacity	wt, %	≥21	≥21	≥21	≥21
Moisture Content	wt, %	≤1.5	≤1.5	≤1.5	≤1.5

Molecules adsorbedMolecules with an effective diameter of <3 angstroms, e.g., H2O

Molecules excludedMolecules with an effective diameter of >3 angstroms, e.g., C2H4, CO2, and CH3OH

Measured at 17.5 mm Hg and 25 °C. The normal equilibrium water capacity in water saturated gas.

PACKING

Packing	Cubage	Net Weight (KG)
Packing	Cubage	Beads	Pellets
55-gallon steel drums	0.208M³	160	140
22-gallon steel drums	0.083M³	60	50
Carton with aluminum or PE bag	0.037M³	25	25
Quick load bag	0.743M³	500	500

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