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Molecular Sieve 13X

Molecular Sieve 13X

Molecular Sieve
13x Molecular Sieve is a special product which is produced to meet the special requirements of air separation industry.It further enhances the adsorption capacity for carbon dioxide and water,and also avoids tower frozen during air separation process.It also can be used for oxygen-making.

Product Description

Synthetic Sodium X-Zeolite

Na-X type sodium aluminosilicate with a super-large 10 Ångström crystal pore aperture. Industry-standard adsorbent for Air Separation Unit (ASU) APG purification, deep natural gas desulfurization, and bulky hydrocarbon drying.

Pore Aperture
10.0 Å (1.0nm)
CO₂ Capacity
≥ 18.0 %
       

               Molecular Sieve 13X                       

     Extruded Pellets | Right: Spherical Beads            
Static H₂O Adsorption
≥ 26.0 %
@ 25°C, RH 60%
CO₂ Adsorption Capacity
≥ 18.0 %
APG Air Purification Grade
Bulk Density
0.62 - 0.68
g/mL Packaging Standard
Attrition Rate
≤ 0.20 %
Ultra-low Dusting Grade

       Key Technical Advantages

  •          Highest Theoretical Capacity: Type X crystal lattice offers significantly higher water and gas loading capacity than 3A, 4A, or 5A sieves.
  •          Co-Adsorption Efficiency: Simultaneously removes H₂O, CO₂, H₂S, and heavy hydrocarbons in a single bed step.
  •          Superior APG Performance: Engineered for cryogenic air pre-purification to prevent CO₂ and moisture icing in cold boxes.
  •          Exceptional Crush Strength: High mechanical resistance ensures zero structural collapse under high pressure bed switching.

       Molecular Adsorption Capability

With a 10 Å pore size, 13X adsorb almost all molecules that can enter 3A, 4A, and 5A, plus larger critical-diameter compounds:

READILY ADSORBED (< 10.0 Å)
H₂O, CO₂, H₂S, Mercaptans, Branched Hydrocarbons, Aromatics (Benzene, Xylene), Di-n-butylamine
REJECTED / EXCLUDED (> 10.0 Å)
Tri-n-butylamine, Perfluorotributylamine, Polymeric compounds with kinetic diameter > 10 Å
Technical Specification Sheet (TDS Matrix)        Standard & APG Grade
Property / ParameterUnitSphere (1.6 - 2.5 mm)Sphere (3.0 - 5.0 mm)Pellet (1.6 / 3.2 mm)
Chemical Formula-Na₂O · Al₂O₃ · (2.8±0.2)SiO₂ · (6-7)H₂O
Bulk Densityg/mL≥ 0.64≥ 0.64≥ 0.62
Crush StrengthN/piece≥ 35 N≥ 85 N≥ 40 N / ≥ 65 N
Static Water Adsorption% wt≥ 26.0%≥ 26.0%≥ 25.5%
CO₂ Adsorption Capacity% wt≥ 18.0%≥ 18.0%≥ 17.5%
Attrition Rate% wt≤ 0.20%≤ 0.20%≤ 0.25%
Packaging Moisture% wt≤ 1.5%≤ 1.5%≤ 1.5%

Primary Industrial Target Applications

Air Separation Units (ASU / APG)
Removes H₂O, CO₂, and trace hydrocarbons from air feed prior to cryogenic liquefaction.
Natural Gas Desulfurization
Sweetening of LNG/natural gas by stripping H₂S, mercaptans, and organic sulfur compounds.
PSA Oxygen Generation
Used in specific pressure swing adsorption setups for nitrogen removal and enriched O₂ output.
Aromatics & Solvents Purification
Deep drying and impurity removal from bulky hydrocarbon streams (Benzene, LPG, Toluene).

Regeneration Temperature & Handling

Thermal Regeneration (TSA): Molecular sieve 13X can be regenerated by heating to 200°C – 310°C under dry gas purge conditions. Do not exceed 450°C to preserve structural lattice.
     Packaging Options: Heavy-duty 25 kg steel drums, air-tight fiber drums, or 1000 kg moisture-sealed jumbo bags.

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