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Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical

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Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical

Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical
Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical

Large Image :  Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical

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

Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical

Description
Color: White Mole Ratio: 15-1000
Nominal Cation Form: Ammonium/Hydrogen BET: 350-500m2/g
CAS: 308081-08-5 Application: Oil Refinery Chemical / Hydrogen Flow Of Catalyst
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SiO2/Al2O3 15 zsm 5 zeolite powder

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SiO2/Al2O3 15 hzsm 5 zeolite

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SiO2/Al2O3 15 ZSM-5 Zeolite

ZSM-5 Zeolite For Oil Refinery Chemical / Hydrogen Flow Of Catalyst

 

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

 

ZSM-5 zeolite molecular sieve Structure

ZSM-5 is composed of several pentasil units linked together by oxygen bridges to form pentasil chains. A pentasil unit consists of eight five-membered rings. In these rings, the vertices are Al or Si and an O is assumed to be bonded between the vertices. The pentasil chains are interconnected by oxygen bridges to form corrugated sheets with 10-ring holes. Like the pentasil units, each 10-ring hole has Al or Si as vertices with an O assumed to be bonded between each vertex. Each corrugated sheet is connected by oxygen bridges to form a structure with "straight 10-ring channels running parallel to the corrugations and sinusoidal 10-ring channels perpendicular to the sheets. Adjacent layers of the sheets are related by an inversion point. The estimated pore size of the channel running parallel with the corrugations is 5.4–5.6 Å.The crystallographic unit cell of ZSM-5 has 96 T sites (Si or Al), 192 O sites, and a number of compensating cations depending on the Si/Al ratio, which ranges from 12 to infinity. The structure is orthorhombic (space group Pnma) at high temperatures, but a phase transition to the monoclinic space group P21/n.1.13 occurs on cooling below a transition temperature, located between 300 and 350 K.

ZSM-5 catalyst was first synthesized by Argauer and Landolt in 1969.It is a medium pore zeolite with channels defined by ten-membered rings. The synthesis involves three different solutions. The first solution is the source of alumina, sodium ions, and hydroxide ions; in the presence of excess base the alumina will form soluble Al(OH)4 ions. The second solution has the tetrapropylammonium cation that acts as a templating agent. The third solution is the source of silica, one of the basic building blocks for the framework structure of a zeolite. Mixing the three solutions produces supersaturated tetrapropylammonium ZSM-5, which can be heated to recrystallize and produce a solid.

 

 

Electronics Chemicals SiO2/Al2O3 15 ZSM-5 Zeolite For Oil Refinery Chemical 0

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