4A Desiccant

desiccant for gas and other material, 4A molecular seive, molecular sieve, disccant,4A desiccant

Chemical Formula: Na2O·Al2O3·2SiO2·9/2H2O

Si/Al ratio: SiO2/ Al2O3≈2

Pore diameter:About 4

Use: Desiccant for gas and other material; adsorbent for Ar purification and 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

Reactivation:
1. Removal of water: Hot gas at 200-350°C and pressure 0.3-0.5Kg/cm2 flows through the molecular sieve bed for 3-4 h. lettemperature decreases down to 110-180°C, cooling.
2. Removal of organics: Regeneration is achieved by means ofsteam treatment to remove organics, and then remove water withmethod 1.

Conservation:
Room temperature, humidity <90%, non-expose to air; non-contactwithwater, acid and alkali..
 Packing:
25 Kg (10 gallon) steel pail
150 Kg (bead, 55 gallon) steel pail
130 Kg (pellet, 55 gallon) steel pail

molecular sieve, Desiccant, adsorption,4A molecular sieve,4A desiccant