Molecular Sieve is an alkali metal alumina 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 maximises lifetime when dehydrating such
molecules.
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.
|
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
|
≥96
|
≥96
|
|
Bulk density
|
g/ml
|
≥0.68
|
≥0.68
|
≥0.68
|
≥0.68
|
|
Wear ratio
|
%
|
≤0.20
|
≤0.25
|
≤0.10
|
≤0.10
|
|
Crushing strength
|
N
|
45/cm
|
50/cm
|
30/piece
|
70/piece
|
|
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
|
Application
1) Drying of unsaturated hydrocarbons (e.g. ethylene,propylene,butadiene)
2) Cracked Gas Drying
3) Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbon is required
4) Drying of highly polar compounds, such as methanol and ethanol
5) Drying of liquid alcohol
6) Static (non-regenerative) dehydration of insulating glass units,whether air filled or gas-filled.
7) Drying of refrigerants