• for adsorptive desulfurization of hydrocarbons
  • for adsorptive separation of the hydrocarbon mixtures alkane – alkene
  • for adsorptive separation and production of pure components from the isomers mixture
  • for adsorptive final purification processes

General characteristics

Y-sit is a synthetic Y type zeolite with pores size 0.9 nm. Molecular sieves are crystalline aluminosilicates of alkali metals or alkaline earth metals. They have a 3-D crystal lattice with tetrahedrons SiO4 and AlO4 as its basic components, arranged to create a regularly alternating cavities. Dimensions of intra-crystalline cavities and entering pores into cavities are characteristic for the individual types of molecular sieves. Molecular sites do not contain toxic components. Such type of molecular sieve shows a high adsorption capacity and thermal stability.

Y-sit is sodium aluminosilicate. Its chemical composition in dehydrated state expresses the formula Na2O. Al2O3 . 4,5 SiO2.

Quality indicators

Name Chemical composition Effective
R pores
(g/100 g)
Y-sit V 15 sodium-aluminosilicate 0,9 min. 8,0 min. 23,0 580 - 760

RAK43 - equilibrium adsorption capacity
It determines the zeolite capacity do adsorb water vapor from the air at 25 °C and relative air humidity 43% in g water per 100 g dry zeolite
V 15 - extrudate in form of small cylinders of 1.5 mm diameter


Zeolites are packaged and delivered in metallic 20-liter- or 200-liter-containers. Water content in granulated packaged products is not more than 1.5 % mass.

Y-sit is characterized by the standard

PN VÚRUP 023 - 03 Synthetic zeolites, molecular sieves of type A and Y


Y-sit (175.49 KB, pdf)