中文 | EN
info@bestpacking.cn
Product center
Home > Products > Molecular Sieve
< >

3A molecular sieve

Model Number:BS-3A

Place of Origin:Pingxiang,China

Keywords:3A molecular sieve, 3A zeolite, molecular sieve desiccant

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 maximizes lifetime when dehydrating such molecules

INQUIRE NOW Contact us 86 (0) 799 6699600 / 0086 15179934828 jenny@bestpacking.cn

Molecular Sieve type 3A is an alkali metal alumino-silicate; it 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 maximizes lifetime when dehydrating such molecules

 

Typical Chemical Formula
0.4K20.6Na2O  Al2O3 2.OSiO2 4.5H2O

SiO2 : Al2O3 ≈2

 

Technical Parameter

Item

Unit

Technical data

Shape

 

Pellet

Sphere

Diameter

mm

1.5-1.7

3.0-3.3

1.7-2.5

3.0-5.0

Size ratio up to grade

%

≥98

≥98

≥98

≥98

Bulk density

g/ml

≥0.65

≥0.65

≥0.70

≥0.70

Wear ratio

%

≤0.20

≤0.25

≤0.10

≤0.10

Crushing strength

N

≥45/cm

≥60/cm

≥30/p

≥70/p

Static water adsorption

%

≥20

≥20

≥20

≥20

Ethylene adsorption

%

≤3.0

≤3.0

≤3.0

≤3.0

Water content, as shipped

%

≤1.5

≤1.5

≤1.5

≤1.5



Typical Application
● Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien) 
● Cracked Gas Drying
● Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required. 
● Drying of highly polar compounds, such as methanol and ethanol
● Drying of liquid alcohol
● Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
● Drying of refrigerants

Regeneration
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
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 1.6”, 3.2”. 

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

GENERAL ENQUIRY

Simply fill in the form below and we'll be in contact with you in 8 hours

Copyright © 2005-2018 PINGXIANG BESTN CHEMICAL PACKING CO.,LTD rights reserved. technology support JIUXIN NET