Effect of ZrO2 on steam reforming of methanol over CuO/ZnO/ZrO2/Al2O3 catalysts

► ZrO2 improved the dispersion and reducibility of the CuO/ZnO/Al2O3 catalysts. ► ZrO2 also enhanced the adsorption of methanol on the CuO/ZnO/Al2O3 catalysts. ► A lower CuO/ZnO ratio was associated with more promoting effect of ZrO2. ► An appropriate CuO/ZnO ratio 0.75–0.8 was needed for the promot...

Full description

Saved in:
Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2012-06, Vol.192, p.350-356
Main Authors: Chang, Cheng-Chun, Wang, Jhih-Wei, Chang, Ching-Tu, Liaw, Biing-Jye, Chen, Yin-Zu
Format: Article
Language:English
Subjects:
Adsorption
ALUMINUM OXIDE
Applied sciences
Catalysis
CATALYSTS
Catalytic reactions
Chemical engineering
Chemistry
COPPER OXIDE
CuO/ZnO ratio
Exact sciences and technology
FORMING
General and physical chemistry
Hydrogen
Methanol
Methyl alcohol
Reactors
Reforming
STEAM
Steam reforming
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
ZINC OXIDE
zirconium
Zirconium dioxide
ZIRCONIUM OXIDE
ZrO2
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► ZrO2 improved the dispersion and reducibility of the CuO/ZnO/Al2O3 catalysts. ► ZrO2 also enhanced the adsorption of methanol on the CuO/ZnO/Al2O3 catalysts. ► A lower CuO/ZnO ratio was associated with more promoting effect of ZrO2. ► An appropriate CuO/ZnO ratio 0.75–0.8 was needed for the promoting effect of ZrO2. The CuO/ZnO/ZrO2/Al2O3 catalysts were prepared by co-precipitation method and the effects of ZrO2 on steam reforming of methanol over CuO/ZnO/Al2O3 catalysts with various CuO/ZnO ratios (40/50–10/80) were examined and discussed. Zirconium oxide improved the dispersion and reducibility of the CuO/ZnO/Al2O3 catalysts and promoted the adsorption of methanol. The promoting effect of ZrO2 was observed only on the CuO/ZnO/Al2O3 with the CuO/ZnO ratio less than 0.8. A lower CuO/ZnO ratio in the CuO/ZnO/Al2O3 catalysts was associated with greater promoting effect of ZrO2 in the SRM reactions, which depend on appropriate interactions through the interface between CuO and ZnO.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2012.03.063