It has been proved that a novel class of catalysts containing only titanium and zinc oxides with different Zn/Ti molar ratio is able to produce hydrogen by methanol reforming. Catalysts were characterised by X-ray diffraction. The influence of the reaction temperature, fed composition and catalyst composition were investigated. The best catalyst performances were obtained when ?Zn = 0.05. A comparative study on the steam reforming of methanol and combined reforming of methanol reactions was performed at the same conditions. The main by-products were CO, (CH3)2O and CH4. Coke was formed when ?Zn <= 0.02. In particular it was verified that a proper amount of zinc in the catalyst prevented coke and reduced by-products formation, however if ?Zn >= 0.10 it limited the catalyst performances reducing surface area and forming zincite.

Methanol reforming reactions over Zn/TiO2 catalysts

F Pinzari;P Patrono;
2006

Abstract

It has been proved that a novel class of catalysts containing only titanium and zinc oxides with different Zn/Ti molar ratio is able to produce hydrogen by methanol reforming. Catalysts were characterised by X-ray diffraction. The influence of the reaction temperature, fed composition and catalyst composition were investigated. The best catalyst performances were obtained when ?Zn = 0.05. A comparative study on the steam reforming of methanol and combined reforming of methanol reactions was performed at the same conditions. The main by-products were CO, (CH3)2O and CH4. Coke was formed when ?Zn <= 0.02. In particular it was verified that a proper amount of zinc in the catalyst prevented coke and reduced by-products formation, however if ?Zn >= 0.10 it limited the catalyst performances reducing surface area and forming zincite.
2006
Istituto di Nanotecnologia - NANOTEC
Fuel cell
Hydrogen production
Methanol reforming
ZnO/TiO2 catalysts
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/38420
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