Molecular Sieve 13X
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Molecular Sieve 13X

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chemicals 13x molecular sieve zeolite for removal of hydrogen sulfide and mercaptan from hydrocarbon liquid streams

chemicals 13x molecular sieve zeolite for removal of hydrogen sulfide and mercaptan from hydrocarbon liquid streams

Chemxin Molecular Sieve 13X 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 10 Angstrom (1.0 nm) and exclude those larger. It 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.

Technical Parameter:

Model 13X
Color Light gray
Nominal pore diameter 10 angstroms
Shape Sphere Pellet
Diameter (mm) 1.7-2.5(8*12 mesh) 3.0-5.0(4*8 mesh) 1.6(1/16 inch) 3.2(1/8 inch)
Size ratio up to grade (%) ≥98 ≥98 ≥96 ≥96
Bulk density (g/ml) ≥0.68 ≥0.68 ≥0.65 ≥0.65
Wear ratio (%) ≤0.20 ≤0.20 ≤0.40 ≤0.40
Crushing strength (N) ≥35/piece ≥85/piece ≥25/piece ≥65/piece
Static H2O adsorption (%) ≥25 ≥25 ≥25 ≥25
Static CO2  adsorption (‰) ≥17 ≥17 ≥17 ≥17
Water content (%) ≤1.5 ≤1.5 ≤1.5 ≤1.5
Typical Chemical Formula

Na2O. Al2O3. (2.8±0.2) SiO2. (6~7)H2O  (SiO2 : Al2O3 ≈2.6-3.0)

Typical Application

a) Removal of H2O from air for air cryo-separation application
b) Removal of CO2 and moisture from air (air pre-purification) and other gases.
c) Separation of enriched oxygen from air.
d) For desulfurization aerosol propellant deodorant
e) For natural gas, liquefied petroleum gas, liquid paraffin (propane, butane) dehydration and desulphurization (removal of hydrogen sulfide and mercaptan).
f)  Catalyst protection, removal of oxygenates from hydrocarbons (olefin streams)

g) Removal of n-chained compositions from aromatics.

h) Production of bulk oxygen in PSA units.

i) Production of medical oxygen in small scale oxygen concentrators.


a) By National Standard HG-T_2690-2012

b) Offer lifetime consultation on problems occurred

Chemxin 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 mercaptans or CO2 levels below 2 ppm.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
13X - Zeolite 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 1.6mm, 3.2mm.

To avoid damp and pre-adsorption of organic before running, or must to be reactivated.

chemicals 13x molecular sieve zeolite for removal of hydrogen sulfide and mercaptan from hydrocarbon liquid streams


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