Luoyang Tianping Molecular Sieve Co., Ltd. 天平分子筛

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Type A molecular sieve

X-type molecular sieve

Y-type molecular sieve

Type 3A molecular sieve

Type 3A molecular sieve

A synthetic hydrated aluminosilicate (zeolite) or a natural zeolite that functions as a molecular sieve. Its general chemical formula is (M′2M)O·Al2O3·xSiO2·yH2O, where M′ and M represent monovalent and divalent cations, such as K+, Na+, Ca2+, and Ba2+. Structurally, it features numerous uniform‑sized channels and well‑ordered cavities; molecular sieves with different pore sizes can separate molecules of varying sizes and shapes. Depending on the SiO2/Al2O3 molar ratio, molecular sieves with distinct pore dimensions are obtained. Common types include: 3A (potassium A‑type), 4A (sodium A‑type), 5A (calcium A‑type), 10Z (calcium Z‑type), 13Z (sodium Z‑type), Y (sodium Y‑type), and sodium mordenite, among others. These materials exhibit high adsorption capacity, strong selectivity, and excellent thermal stability. They are widely used in organic and petrochemical industries and serve as outstanding desiccants for gas dehydration. Moreover, they are increasingly recognized for their utility in exhaust‑gas purification.

4A molecular sieve

4A molecular sieve

The pore size of 4A molecular sieve is 4 Å; it adsorbs water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, and propylene, but does not adsorb any molecules with a diameter greater than 4 Å (including propane). Its selective adsorption for water is superior to that for any other molecule. It is one of the most widely used types of molecular sieves in industry.

5A molecular sieve

5A molecular sieve

5A molecular sieve can adsorb any molecule smaller than its pore size and is commonly referred to as a calcium‑type molecular sieve. In addition to the functions of 3A and 4A molecular sieves, it can also adsorb n‑paraffins with carbon numbers C3–C4, ethyl chloride, ethyl bromide, butanol, and other compounds, making it suitable for the separation of normal and isomeric hydrocarbons, pressure swing adsorption, and the co‑adsorption of water and carbon dioxide.

Molecular sieves are a class of crystalline aluminosilicates.

Molecular formula: Na2O·Al2O3·2.0SiO2·4.5H2O

■ Selective adsorption based on molecular size and shape, adsorbing molecules smaller than the pore diameter of the molecular sieve.
■ For small polar molecules and unsaturated molecules, the material exhibits selective adsorption; the greater the polarity and the higher the degree of unsaturation, the stronger the selectivity.
■ It exhibits strong water‑absorption capacity, maintaining a high adsorption performance even under elevated temperatures, high gas velocities, and low moisture levels. We can produce molecular sieves in the 3A, 4A, 5A (oxygen production), 5A (desulfurization), 10X, 13X, and CU‑13X series, available in both pellet and granular forms. These materials are characterized by high mechanical strength, excellent thermal stability, and superior selective adsorption properties. They find extensive applications in the chemical, petrochemical, and natural gas industries.

Product Features

■ Strong adsorption capacity
■ High-temperature resistant
■ Moisture removal: Depends on the pressure, temperature, and moisture content of the regeneration gas.
■ Removal of organic substances: Replace the organic substances with steam, then remove the moisture.
■ Storage: Store indoors at a relative humidity not exceeding 90%; keep away from water, acids, and alkalis, and protect from exposure to air.

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