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Jiangxi Sanxin Hi-Tech Ceramics Co., Ltd.
3A Type Molecular Sieve
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Introduction of 3A Type Molecular Sieve

Molecular Sieve type 3A is an alkali metal alumino-silicate; 3A type molecular sieve 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.

Technical Parameter of 3A Type 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 Type Molecular Sieve

XINTAO 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.

Size of 3A Type Molecular Sieve

3A - Zeolites are available in beads of 1-2 mm(10x18 mesh), 2-3 mm(8x12 mesh), 2.5-5 mm(4x8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.

Attention of 3A Type Molecular Sieve

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

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