4A molecular sieve
- Chemical Formula:Na2O·Al2O3·2SiO2·9/2H2O
- Si/Al ratio:SiO2/Al2O3≈2
- Pore diameter:About 4A
- Use：Desiccant for gas and other material; adsorbent for Ar purification for the separation of methane, ethane and propane.
- Technical parameter ：
|
Parameter
|
Unit
|
Bead
|
Pellet
|
|
Diameter
|
Mesh
|
8×12
|
4×8
|
1/16″
|
1/8″
|
|
Water adsorption capacity
|
≥％wt
|
21
|
21
|
21
|
21
|
|
Methanol adsorption capacity
|
≤mg/g
|
140
|
140
|
140
|
140
|
|
Bulk density
|
≥g/ml
|
0.66
|
0.66
|
0.64
|
0.64
|
|
Strength
|
≥N
|
40
|
90
|
40
|
85
|
|
Abrasion
|
≤％wt
|
0.1
|
0.1
|
0.2
|
0.2
|
|
Water content
|
≤％wt
|
1.5
|
1.5
|
1.5
|
1.5
|
1. Removal of water: Hot gas at 200-350℃ and pressure 0.3-0.5㎏/㎝2 flows through the molecular sieve bed for 3-4 h. let temperature decreases down to 110-180℃, cooling.
2. Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method1.
Room temperature, humidity ﹤90%,non-expose to air; non-contact with water, acid and alkali.
30kg (10 gallon) steel pail 150kg (bead,55 gallon) steel pail 130kg (pellet,55 gallon) steel pail
