13X Molecular Sieve For Refinery Pretreatment
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13X Molecular Sieve for H₂S Removal
13X molecular sieves are sodium-type (NaX) aluminosilicate zeolites with uniform micropores (~1 nm).
Size Selectivity: The pores are ideally suited for adsorbing larger or polar molecules such as CO₂ and H₂S.
Polar Adsorption: Na⁺ ions within the 13X molecular sieve interact with the polarity or polarizability of H₂S molecules, enhancing adsorption efficiency. Compared with traditional adsorbents, 13X molecular sieves exhibit higher dynamic H₂S adsorption capacity and longer service life.
Specification.
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Model |
13X |
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Color |
Light gray |
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Nominal pore diameter |
10 angstroms |
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Shape |
Sphere |
Pellet |
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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) |
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Size ratio up to grade (%) |
≥98 |
≥98 |
≥96 |
≥96 |
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Bulk density (g/ml) |
≥0.68 |
≥0.68 |
≥0.65 |
≥0.65 |
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Wear ratio (%) |
≤0.20 |
≤0.20 |
≤0.40 |
≤0.40 |
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Crushing strength (N) |
≥30/piece |
≥85/piece |
≥25/piece |
≥65/piece |
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Static H2O adsorption (%) |
≥25 |
≥25 |
≥25 |
≥25 |
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Static CO2 adsorption (%) |
≥17 |
≥17 |
≥17 |
≥17 |
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Water content (%) |
≤1.5 |
≤1.5 |
≤1.5 |
≤1.5 |
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Typical Chemical Formula |
Na2O. Al2O3. (2.8±0.2) SiO2. (6~7)H2O |
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Warranty |
a)By National Standard HG-T_2690-2012 b)Offer lifetime consultation on problems occurred |
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Application Scenarios
Wellhead Gas Treatment: Mobile 13X molecular sieve units for on-site H₂S removal.
Gathering & Transmission Systems: Fixed adsorption towers at compressor and metering stations.
Refinery Pretreatment: Protects hydrodesulfurization catalysts from poisoning.
Confined Space Safety: Air purification for drilling floors, cellars, and control rooms.
Industry Impact
13X molecular sieve adsorption technology enables efficient, low-energy, and sustainable H₂S removal, helping the natural gas industry transition from passive pollution control to proactive safety and environmental management.
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