FOB Price
Obtenir le dernier prix1000 ~ 1500 / Ton ( Negotiable )
|Minimum Order
Localit:
China
Prix de commande minimale:
Commande minimale:
1 Ton
Packaging Detail:
150KG per steel drum
Delivery Time:
within 10 days
Supplying Ability:
100 Ton per Week
Payment Type:
T/T, L/C
Personne à contacter Ms. Abby
Sanshan Industrial Park, Luoyang, Henan
Introduction
Molecular Sieve
type 4A is an alkali alumino silicate; it is the sodium form of the
Type A crystal structure. 4A molecular sieve has an effective pore
opening of about 4 angstroms (0.4nm). Xinghua type 4A
molecular sieve will adsorb most molecules with a kinetic
diameter of less than 4 angstroms and exclude those larger. Such
adsorbable molecules include simple gas molecules such as oxygen,
nitrogen, carbon dioxyde and straight chain hydrocarbons. Branched
chain hydrocarbons and aromatics are excluded.
Typical Chemical
Formula
Na2O . Al2O3 . 2SiO2 . 4.5 H2O
SiO2 : Al2O3 ≈2
Technical Parameter
| Item | Unit | Technical data | |||
| Shape | Pellet | Sphere | |||
| Diameter | mm | 1.**1.7 | 3.**3.3 | 1.**2.5 | 3.**5.0 |
| Size ratio up to grade | % | ≥*8 | ≥*8 | ≥*8 | ≥*8 |
| Bulk density | g/ml | ≥0.*6 | ≥0.*6 | ≥0.*0 | ≥0.*0 |
| Wear ratio | % | ≤0.*0 | ≤0.*0 | ≤0.*0 | ≤0.*0 |
| Crushing strength | N | ≥*0/cm | ≥*5/cm | ≥*0/p | ≥*0/p |
| Static water adsorption | % | ≥*1 | ≥*1 | ≥*1 | ≥*1 |
| Static methanol adsorption | % | ≥*5 | ≥*5 | ≥*5 | ≥*5 |
| Water content, as shipped | % | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
Application
Drying and
removing of CO2 from natural gas, LPG, air, inert and athmospheric
gases, etc.
Removal of hydrocarbons, ammonia and methanol from gas
streams
(ammonia syn gas treating)
Special types are used in the air break units of buses,
trucks and locomotives.
Packed in small bags, it may be used simply as a
packaging desiccant.
Regeneration
Molecular sieve Type 4A 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 4A molecular sieve, a temperature of
******0°C is required. A properly regenerated molecular sieve can
give moisture dew points below ***0°C.
The outlet concentrations on a pressure swing process will depend
on the gas present, and on the conditions of the process
Size
4A - Zeolites are available in beads of **2 mm, (*0x*8 mesh)
**3 mm, (8x*2 mesh) , 2.**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.
