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Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve

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Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve

Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve
Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve

Large Image :  Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve

Product Details:
Place of Origin: china
Brand Name: QD
Certification: ISO9001:2015
Model Number: SiO2/Al2O3=10-1000
Payment & Shipping Terms:
Minimum Order Quantity: 1 kg
Price: USD3000-10000 Ton
Packaging Details: 25kg/bags or 500kg/bags and carbon
Delivery Time: 5-8days
Supply Ability: 1000Ton per month
Detailed Product Description
Color: White Powder SiO2/Al2O3: 25-1000
Nominal Cation Form: Ammonium/Hydrogen CAS: 308081-08-5
Application: Increase Gasoline Octane / Gas Olefin Content Type: Hydro, Amine Type, H Tyep, NH3 Type
High Light:

SiO2/Al2O3 25 ZSM 5 Molecular Sieve

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SiO2/Al2O3 25 zsm 5 zeolite powder

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SiO2/Al2O3 25 zeolite based catalyst

Steam Stability ZSM 5 Catalyst , ZSM 5 Molecular Sieve With Amine Cation

 

Acid resistance

ZSM-5 zeolite has good acid resistance, it is resistant to various acids except hydrofluoric acid.

 

Mole Ratio: 15-1000
Nominal Cation Form: Ammonium/Hydrogen

 

Products

SiO2/Al2O3Mole Ratio Nominal Cation Form Na2O Weight % Surface Area, m2/g
QD 01 25 Sodium/Hydrogen 0.05 450
QD O2 30 Sodium/Hydrogen 0.05 450
QD 03 50 Sodium/Hydrogen 0.05 450
QD 04 80 Sodium/Hydrogen 0.05 450
QD 05 280 Sodium/Hydrogen 0.05 450

 

 

 

 

 

 

 

 

 

Na2O Weight %: 0.05
Surface Area, m2/g: 450

 

 

Description:

ZSM-5 zeolite properties

 

Thermal stability

High thermal stability of ZSM-5 zeolite. This is caused by a skeleton in a stable five-membered ring structure and a high silica to alumina ratio. For example, the sample calcined at 850 ℃ After 2 hours, the crystal structure unchanged. Even can withstand high temperature of 1100 ℃. So far, ZSM-5 zeolites are known to one of the highest qualitative hot temperature. Therefore, it is used in high-temperature process is particularly suitable. For example, use it as a hydrocarbon cracking catalyst, regeneration of the catalyst can withstand passage of time.

 

Steam stability

The studies have shown that when other zeolites by steam and hot water, and their general structure is destroyed, leading to irreversible deactivation. The Mobil company with ZSM-5 as the conversion of methanol (water is one of the major product) catalyst. This suggests that ZSM-5 to water vapor with good stability. 540 ℃ lower partial pressure of 22mmHg steaming column and HY zeolite HZSM-5 after 24 hours, a crystallinity of HZSM-5 and about 70 percent of fresh catalyst, but under the same conditions, HY zeolite skeleton almost completely damage.

 

Hydrophobic

ZSM-5 having a high silica to alumina ratio, the smaller the surface charge density. The water molecule is polar, so you will not ZSM-5 is adsorbed. Although water molecules smaller than the diameter of n-hexane, but the amount of adsorption of n-hexane ZSM-5 is generally greater than water.

 

Easy to coke

ZSM-5 V-shaped aperture effective, pore size and bending, preventing a large condensate formation and accumulation. Meanwhile, ZSM-5 framework is no greater than the bore of the cavity (cage) exist, so limiting the formation of large molecules from the secondary condensation reactions. So that the possibility of ZSM-5 catalyst coke is reduced. ZSM-5 for an alkyl aromatics into the tunnel barrier is formed, and thus the reaction process it can not continue to react in smaller pores, the final condensation formed coke. ZSM-5 so much slower than the rate of coke deposition and Y-type mordenite, difference of almost two orders of magnitude. Capacity of ZSM-5 zeolite carbon content is higher.

 

Excellent shape-selective selectivity

Zeolite molecular sieve as catalyst, only smaller than the hole crystal molecules can catalyze the reaction out of control pore size crystalline zeolite suffering zeolite catalyst size and shape of reactant and product molecules showed great selectivity. Pore ​​system of ZSM-5 zeolite having a 10-MR constituted medium size orifice diameter, it has a good shape-selective selectivity.

 

Item Unit Max Typical Max Analytical Method
Relative crystallinity % 90 93   X-ray diffractometer
Total specific surface M2/g 320 360   N2 Adsorption
Microporous specific surface M2/g 270 280   N2 Adsorption
Silica-alumina ratio / 25 27.5 30 XRF
Na2O wt%   0.040 0.1 Flame Photometric Analysis
SO42- wt%   0.20 0.4 XRF
Cl- ppm     70 Chemical analysis
LOI. wt%     10 Gravimetric Analysis
D,50 um   6 9 Laser Scatter Distribution
D,90 um   9.0 15 Laser Scatter Distribution
>100um %   0 0.06 Laser Scatter Distribution

ZSM-5 25

 

 

ZSM-5 32

 

Item Unit Max Typical Max Analytical Method
Relative crystallinity % 90 95   X-ray diffractometer
Total specific surface M2/g 320 360   N2 Adsorption
Microporous specific surface M2/g 270 280   N2 Adsorption
Silica-alumina ratio / 32 35.5 38 XRF
Na2O wt%   0.050 0.1 Flame Photometric Analysis
SO42- wt%   0.25 0.4 XRF
Cl- ppm     70 Chemical analysis
LOI. wt%     10 Gravimetric Analysis

 

ZSM-522

 

Item Unit Max Typical Max Analytical Method
Relative crystallinity % 75 82   X-ray diffractometer
Total specific surface M2/g 330 360   N2 Adsorption
Microporous specific surface M2/g 280 310   N2 Adsorption
Silica-alumina ratio / 22 25 27 XRF
Na2O wt%   0.050 0.1 Flame Photometric Analysis
SO42- wt%   0.25 0.4 XRF
Cl- ppm     70 Chemical analysis
LOI. wt%   4 10 Gravimetric Analysis
D,50 um   6 7 Laser Scatter Distribution
D,90 um   8.0 9 Laser Scatter Distribution

 

Powdered SiO2/Al2O3 25 ZSM 5 Molecular Sieve 0

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