Molecular sieve, a form of synthetic zeolite, specialises in the selective adsorption and release of water and polar molecules from gases and liquids. This desiccant comprises a crystalline aluminosilicate framework with a precise SiO2:Al2O3 ratio of 2:1.

High Absorption Capacity

Commonly known as zeolite or mol sieve, its distinguishing feature is its pore sizes. These sizes are defined by the specific arrangement of AlO4 and SiO4 tetrahedra within its structure, a configuration that ultimately determines the specific type of molecular sieve used in various applications.

Molecular sieves comprise an intricate three-dimensional alumina, silica, and tetrahedra framework. This arrangement creates a lattice structure featuring uniform micropores. These tiny pores act as selective filters, trapping and releasing molecules based on size, shape, and polarity.

These desiccants are versatile and used for applications like humidity reduction, substance dehydration, and the selective purification and separation of gases and liquids. They can absorb up to 22% of their weight and are engineered with specific pore sizes, enabling the precise separation of targeted molecules.

Desiccants for Humidity Control

Molecular sieves, known for their high absorbent capacity, can be regenerated effectively at temperatures ranging from 200°C to 350°C, allowing for repeated use. These desiccants are adept at managing humidity and functioning efficiently in filtration systems and sachets.

We manufacture desiccant bags filled with molecular sieves with ISO 9001 and 14001 certifications. Available in diverse forms like pellets, powders, and spheres, these desiccants offer superior absorption capacity, robust mechanical strength, and minimal attrition loss, catering to a broad spectrum of applications.

  • Highly effective at removing moisture from gases and liquids
  • Absorbs up to 22% of its weight
  • Customisable pore openings selectively adsorb specific molecules
  • Able to remove impurities from liquids such as ethanol and methanol
  • Functional up to 300ºC, suitable for machined and various applications
  • Can be regenerated at temperatures between 400°C and 600°C
  • Used in petrochemicals, electronics, and food processing industries and ideal for natural gas drying, air conditioning, refrigeration, and chemical processing
  • Available in pellets, powders, and spheres for different needs
  • Mesh size: 8-12, 4-8, or 3-5
  • Bulk density: 0.65-0.75 g/cm3
  • Pore volume: 0.28-0.30 cm3/g
  • Adsorption capacity: >20% by weight
  • Water content: <1% by weight
  • Size: typically in the form of small beads or pellets
  • Chemical composition: typically composed of alumina and silica tetrahedra
  • Regeneration temperature: typically 200-350°C for desorption of adsorbed molecules

There are different types of molecular sieves, each tailored for specific applications based on their pore size and molecular selectivity:

Type 3A: This type is used for drying and purifying polar gases and liquids, such as ethanol, methanol, and natural gas. Its small pore size makes it effective in selectively adsorbing small molecules.

Type 4A: Effective in removing water and carbon dioxide from natural gas, air, and other gases and liquids. This type is versatile, targeting common contaminants in many industrial processes.

Type 5A: Ideal for the separation of gases and liquids with molecular diameters up to 5 Angstroms, like nitrogen and oxygen. This variant is particularly useful in gas purification and separation applications.

Type 13X: Suitable for adsorbing larger molecules, including water, carbon dioxide, and hydrocarbons. It is commonly used in the natural gas and petroleum industries where these larger molecules are prevalent.

Type 10X: Primarily focused on purifying air by removing impurities like carbon dioxide, water, and nitrogen. It is effective in environments where air quality is critical.

Type LSX: Tailored for separating light gases such as helium, hydrogen, and carbon monoxide. This type is particularly useful in applications where the efficient separation of these lighter gases is essential.

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