Zeolite molecular sieve 4A is able to absorb molecules with their critical diameters no more 4angstroms(0.4nm)
Introduction
Zeolite molecular sieve 4A is an alkali alumino silicate; it is the calcium form of the Type 4A crystal structure. Type 4A has an effective pore opening of 4 angstroms (0.4 nm). It will adsorb molecules with a kinetic diameter of less than 4 Angstrom and exclude those larger.
Typical Chemical Formula
Na2O·Al2O3 ·2.SiO2·9/2H2O
Application
1) Drying and removing of CO2 from natural gas, LPG, air, inert and athmospheric gases, etc.
2) Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syn gas treating)
3) Special types are used in the air break units of buses, trucks and locomotives.
4) Packed in small bags, it may be used simply as a packaging desiccant.
Typical Chemical Formula
Na2O·Al2O3 ·2.SiO2·9/2H2O
Application
1) Drying and removing of CO2 from natural gas, LPG, air, inert and athmospheric gases, etc.
2) Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syn gas treating)
3) Special types are used in the air break units of buses, trucks and locomotives.
4) Packed in small bags, it may be used simply as a packaging desiccant.
Technical Parameter
|
Item
|
unit
|
target
|
|||
|
Shape
|
|
pellet
|
ball
|
||
|
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
|
≥0.60
|
≥0.60
|
≥0.60
|
≥0.60
|
|
Abrasion rate
|
%
|
≤0.20
|
≤0.25
|
≤0.20
|
≤0.20
|
|
Crushing strength
|
N/p
|
≥30
|
≥45
|
≥60
|
≥70
|
|
Water adsorption
|
%
|
≥20.5
|
≥20.5
|
≥20.5
|
≥20.5
|
|
Packing water
|
%
|
≤1.5
|
≤1.5
|
≤1.5
|
≤1.5
|