The 3A Molecular Sieve is an alkali metal aluminosilicate, specifically the potassium form of the Type A crystal structure. With an effective pore opening of exactly 3 angstroms (0.3 nm), it is engineered to selectively adsorb water while completely excluding larger molecules such as unsaturated hydrocarbons. This unique size-exclusion property makes it the universal desiccant of choice for the petroleum and chemical industries, preventing the co-adsorption of valuable product streams and ensuring maximum dehydration efficiency.

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Product Highlights

High Selective Adsorption: Precisely screens molecules, absorbing water rapidly while safely rejecting valuable hydrocarbons like ethylene, propylene, and butadiene.

Exceptional Water Capacity: Possesses a highly porous internal structure, delivering outstanding static and dynamic water adsorption capacity even at exceptionally low relative humidity levels.

Superior Mechanical Strength: Manufactured through advanced extrusion and rolling processes, ensuring high crushing strength to withstand deep desiccant bed pressures and prevent powdering during operation.

Low Attrition & Dust Generation: Features a smooth, dense surface that minimizes dusting during column loading and high-velocity gas flow, effectively protecting downstream valves and piping.

Long Cyclic Lifespan: Maintains excellent thermal and hydrothermal stability, allowing for repeated, reliable regeneration cycles and significantly reducing operational replacement costs.

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Typical Applications

Deep dehydration of cracked petroleum gases, ethylene, propylene, butadiene, and acetylene. Dehydration of fuel-grade ethanol, methanol, and other highly polar liquids. Moisture removal in natural gas, LNG, and industrial gas purification processes. Static desiccant for insulating glass units (IGU) and automotive refrigerant systems.