Catalysts for Industrial Applications

Active aluminum oxide is a white, spherical, porous material with uniform particle size, a smooth surface, and high mechanical strength. It has strong dilutability, does not swell or crack upon water absorption, and maintains its original shape. It is non-toxic, odorless, insoluble in water and ethanol, and can be regenerated. Active aluminum oxide features adsorption properties and catalytic activity, and is characterized by its high porosity, high dispersion, and large specific surface area.

Inert alumina balls, also known as industrial ceramic balls or packing ceramic balls, are ceramic spheres with excellent chemical and thermal stability. They are primarily made from industrial alumina and kaolin, shaped and fired at high temperatures, resulting in a uniform appearance and outstanding physical properties. Inert alumina balls can resist corrosion from acids, alkalis, and other organic solvents, and can also withstand temperature fluctuations that may occur during production. These characteristics make inert alumina balls widely used in industries such as petroleum, chemicals, fertilizers, natural gas, and environmental protection, particularly as covering and support materials for catalysts within reactors and as tower packing.

3A molecular sieve is an alkali metal aluminosilicate with a pore size of 3 angstroms (0.3 nanometers), created by potassium ion exchange in an A-type molecular sieve. Due to its internal structure containing numerous 3-angstrom crystal adsorption cavities, it can adsorb molecules with a diameter smaller than 3 angstroms while not adsorbing any molecules with a diameter greater than 3 angstroms. It has a strong selective adsorption for water molecules, making it commonly used as a selective adsorbent and drying agent for various gases and liquids.

4A molecular sieve is an alkali metal aluminosilicate with a pore size of 4 angstroms (0.4 nanometers), and it is a sodium-containing A-type molecular sieve. Due to its internal structure containing numerous 4-angstrom crystal adsorption cavities, it can adsorb molecules with a diameter smaller than 4 angstroms while not adsorbing any molecules with a diameter greater than 4 angstroms (including propane). It has a strong selective adsorption for water molecules, making it commonly used as a selective adsorbent and drying agent for various gases and liquids.

5A molecular sieve is an alkali metal aluminosilicate with a pore size of 5 angstroms (0.5 nanometers), made from calcium ion exchange in an A-type molecular sieve. Due to its internal structure containing numerous 5-angstrom crystal adsorption cavities, it can adsorb molecules with a diameter smaller than 5 angstroms while not adsorbing any molecules with a diameter greater than 5 angstroms. It is primarily used for the separation of normal paraffins, pressure swing adsorption separation, and the co-adsorption of water and carbon dioxide.

13X molecular sieve is an alkali metal aluminosilicate with a pore size of 10 angstroms (1 nanometer), and it is a sodium ion X-type molecular sieve. Due to its internal structure containing numerous 10-angstrom crystal adsorption cavities, it can adsorb molecules with a diameter smaller than 10 angstroms while not adsorbing any molecules with a diameter greater than 10 angstroms. It can be used as a catalyst support, for co-adsorption of water and carbon dioxide, and for co-adsorption of water and hydrogen sulfide gases. It is mainly applied in the drying of pharmaceuticals and air compression systems, offering higher adsorption capacity and lower dew points.