ZSM-5 Full Name | HZSM-5 Catalyst Full Form
The ZSM-5 full name is Zeolite Socony Mobil-5. It has a
framework type MFI. It is an aluminosilicate and belongs to pentasil family of
zeolites. The ZSM-5 catalysts are commercially available in the form of ammonia
ZSM-5 or protonated HZSM-5 with different Si/Al ratios.
The chemical formula of this zeolite is NanAlnSi96-nO19216H2O.
Discovery of ZSM-5
The ZSM-5 was first developed and patented by Mobil Oil
company in 1975.
ZSM-5 catalyst properties
- It is a white crystalline powder
- The ZSM-5 pore size ranges from 5.4 to 5.6 angstrom
- Has strong acidity
- Acidity can be modified by changing Si/Al ratio
- Has high thermal stability
- Excellent shape selectivity
ZSM-5 uses
- The catalyst itself is widely used as heterogeneous catalyst or support material for catalysis. For example, Zn impregnated on ZSM-5 using wet impregnation.
- ZSM-5 is a shape selective catalyst
- Xylene isomerization
- Toluene disproportionation
- Ethylbenzene synthesis
- Para-toluene synthesis
- In the conversion of methanol to gasoline, olefins, aromatics
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