13X Molecular Sieve For PSA Generator

Molecular Sieve 13X Used for absorb molecules with their critical diameters no more than 10A,can used in PSA system and dry gas.

13X Molecular Sieve Details:

It is the sodium form of the type X crystal and has a much larger pore opening than the type A crystals. It will adsorb molecules with a kinetic diameter of less than 9 Angstrom (0.9 nm) and exclude those larger.
Molecular sieve 13X also has the highest theoretical capacity of the common adsorbents and very good mass transfer rates. It can remove impurities too large to fit into a type A crystal and is commonly used to separate nitrogen from oxygen.

Applications:
a) Dry gas, purify raw air material: get rid of H
2
O and CO
2
.
b) Desulfurate liquid hydrocarbon and natural gas: get rid of H
2
S and thioalcohol.
c) Molecules can be adsorbed by molecular sieve 3A, 4A and 5A can be adsorbed by 13X.
d) Can adsorb molecular whose diameter is a little less than critical diameter, such as some aromatic hydrocarbon and branched-chain hydrocarbon.

Typical Chemical Formula
Na2O . Al2O3 . (2.8±0.2) SiO2 . (6~7)H2O
Technical Parameter
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
≥0.61
≥0.61
≥0.64
≥0.64
Wear ratio
%
≤0.10
≤0.20
≤0.10
≤0.10
Crushing strength
N
≥30/cm
≥45/cm
≥25/piece
≥65/piece
Static water adsorption
%
≥23.5
≥23.5
≥23.5
≥23.5
Static CO2 adsorption
%
≥18
≥18
≥18
≥18
Water content, as shipped
%
≤1.5
≤1.5
≤1.5
≤1.5
Application

Removal of CO2 and moisture from air (air pre-purification) and other gases.
Separation of enriched oxygen from air.
Removal of mercaptans and hydrogen sulphide from natural gas.
Removal of mercaptans and hydrpogen sulphide from hydrocarbon liquid streams (LPG, butane, propane etc.)
Catalyst protection, removal of oxygenates from hydrocarbons (olefin streams).
Removal of n-chained compositions from aromatics.
Production of bulk oxygen

in PSA units
.
Production of medical oxygen in small scale oxygen concentrators
Regeneration:
Molecular sieve Type 13X 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 13X molecular sieve, a temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process
Size

13X - Zeolites are available in beads of 1-2 mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6, 3.2.