what is y zeolite?

//what is y zeolite?

what is y zeolite?

Y Molecular Sieve

Nay Molecular Sieve

y zeolite

y zeolite

Introduction:NaY molecular sieve means sodium molecular sieve with Faujasite (Y-type) crystal structure, and it is a kind of aluminosilicate of alkali metal. It can absorb molecules with critical diameter no more than 10A. It has been widely used in adsorption separation, catalysis, ion exchange and many other areas due to its unique three-dimensional pore structure.

Application:Mainly applied to the preparation of FCC catalyst as the source of active component, dehydration, the desulfurization of hydrogen and the purification of industrial gas.

USY Molecular Sieve

Introduction:USY molecular sieve is a kind of Y type molecular sieve which is one kind of product from NaY after a series of treating process (such as ammonium salt exchanging, hydrothermal stabilization, chemical isomorphous substitution, etc.). The unit cell, density of acid site, acid strength and rare earth content of molecular sieve can be adjusted to meet requirements of different catalyst.

Application:Mainly used as the active component of FCC catalyst and the carrier component of hydrocracking catalyst, especially for the key active component of heavy distillate oil for hydrocracking catalyst.

HY Molecular Sieve

Introduction:HY molecular sieve is a kind of aluminosilicate which sodium ions in skeleton of Y-type molecular sieve were displaced by hydrogen ions.

Application:Mainly used as the active component of FCC catalyst and the carrier component hydrocracking catalyst.

Item

Unit

NaY

USY

HY

Relative Crystallinity

%

≥90

≥60

≥80

Silica/Alumina Ratio

4.5-5.6

4.5-5.6

4.5-5.6

Unit cell size

A

24.67-24.73

≤24.58

24.67-24.73

Specific Surface Area

m2/g

≥700

≥650

≥600

Na2O

%

≤13.8

2-2.4

≤2.0

Average Particle size

um

5-8

5-8

5-8

Loss On Ignition

%

≤30

≤30

≤30

By | 2018-01-18T13:54:36+00:00 一月 14th, 2018|news|0 Comments

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