3A molecular sieve is an alkali metal aluminosilicate capable of adsorbing water and molecules with critical diameters not exceeding 3A.
4A molecular sieves can be regenerated using hot, dry gas. Under the influence of the regenerating gas, the sieves desorb adsorbed water, enabling reuse.
5A molecular sieve is an alkali metal aluminosilicate. In addition to possessing the properties of 3A and 4A molecular sieves, it can adsorb n-butanol, higher alcohols, and n-butane.
Zeolite 13X molecular sieve adsorbent is primarily used for desulfurization of aviation gasoline, corresponding kerosene fractions, liquid hydrocarbons, isopropyl alcohol, propane, and similar products.