ZSM-5 Zeolite

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Product Detail

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Introduction:
      ZSM-5 zeolite with its unique three-dimensional cross-through channels and isomerization, shape-selective cracking and aromatization performance, can be widely used in petrochemical, chemical and other industries. In the fluidized-bed catalytic cracking reaction of FCC catalyst, added ZSM-5 has a good response effect for improve the gasoline octane number and increase in the olefin content of the gas.
     Use aluminum and silicate as the main raw material, in a certain ratio, under the conditions of high temperature and high pressure, then hydrothermal crystallization, after filtration, washing, and drying to obtain ZSM-5 zeolite.
 
Industrial applications:
1. Catalytic cracking
2. Diesel Pro hydrogen / non-hydrodewaxing catalyst
3. catalytic dewaxing
4. toluene disproportionation
5. xylene isomerization
6. alkylation
7. isomerization
8. aromatization
9. methanol conversion for production of hydrocarbons.
 
Chemical composition:
SiO2/Al2O3=38 SiO2/Al2O3=50 SiO2/Al2O3=25
Na2O 2.8-2.9% Na2O 2.1-2.3% Na2O 4-4.5%
Al2O3 3.8-3.9% Al2O3 2.3-2.6% Al2O3 5-5.5%
SiO2 85-86 SiO2 86-87 SiO2 80-85
 
Adsorption capacity:

Adsorption

N-hexane

Cyclohexane

Water

SiO2/Al2O3=38

9.5-10.5%

1.9-2.3%

9.0-10.0%

SiO2/Al2O3=50

9.0-10.0%

1.5-2.0%

7.0-8.0%

SiO2/Al2O3=25

9.5-10.5%

2.05-2.5%

11.0-12.0%

Relative crystallinity: Na-type> 85% H-type> 95%
pore size:5A
Skeletal density: 1.81 (iso-octane measurement)
Thermal stability: 1200 °C zeolite can keep the structure.
Hydrothermal stability: 700 °C steam treatment, zeolite can keep the structure.

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