NaY Zeolite catalyst, also known as NaY molecular sieve, is an alkali metal aluminosilicate material with a FAU topological framework structure. Its crystal lattice consists of interconnected SiO4 and AlO4 tetrahedra that form a highly ordered three-dimensional porous network. The framework contains large supercages connected by twelve-membered oxygen rings, creating pore openings of approximately 0.74 nm.
NaY molecular sieve is the sodium form of Y-type zeolite, in which the negative charges generated by framework aluminum atoms are balanced by exchangeable sodium ions. As the parent material of the Y-zeolite family, NaY serves as the starting point for the preparation of numerous modified Y-type molecular sieves through ion exchange, dealumination, and rare-earth modification processes. Common derivatives include NH4Y, HY, USY (Ultra-Stable Y), REY (Rare Earth Y), and various metal-modified Y zeolites.
Therefore, the most important characteristics of NaY zeolite catalyst is its high ion-exchange capacity. This ion-exchange capability makes NaY an important precursor for producing advanced catalysts and adsorbents used in petroleum refining, petrochemical processing, and environmental protection technologies.
In catalytic applications, NaY itself possesses relatively weak acidity due to the presence of sodium ions. But in adsorption applications, NaY zeolite catalyst exhibits strong affinity toward polar molecules such as water, ammonia, and sulfur-containing compounds. So it is widely used in gas purification, air separation, solvent drying, hydrocarbon separation, and industrial dehydration processes.
| Type | NAY |
| Apprearance | White powder |
| Relative Crystallinity(%) | >90 |
| Surface Area(m2/g) | >750 |
| Pore Volume(cm3/g) | >0.36 |
| SiO2/Al2O3(mol/mol) | >5.2 |
| Na2O(%) | 12 |
| Loss On Ignition(wt%) | 15 |
| D50(µm) | 5 |
* Y Zeolite Catalyst Precursor
* Industrial Gas Purification
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