JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Chemical Reaction Engineering
Novel Metal Monolithic Anodic Alumina Catalyst for Methane Catalytic Combustion, the External Heat Source for Methane Steam Reforming
Huabo LiYu GuoAhmad IqbalLu ZhouJian ChenYi YaoMakoto SakuraiHideo Kameyama
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2009 Volume 42 Issue 12 Pages 902-909

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Abstract

A novel metal monolithic anodic γ-Al2O3 support was prepared by anodization using a clad aluminum plate. The catalytic combustion of methane on Pt/Al2O3/Alloy, Pd/Al2O3/Alloy and Pd–Pt/Al2O3/Alloy catalysts prepared by the impregnation method was studied. The catalysts were characterized by ICP, BET, and temperature-programmed oxidation (TPO). The results showed that at low temperatures (<500°C), both Pd/Al2O3/Alloy and Pd–Pt/Al2O3/Alloy showed high activity, but the activity of Pt/Al2O3/Alloy catalyst was very poor. At high temperatures (>700°C), Pd–Pt/Al2O3/Alloy showed the best activity among these three catalysts, whereas the activity of Pd/Al2O3/Alloy decreased gradually. Therefore, it was concluded that the co-existence of Pd and Pt in the Al2O3/Alloy support in Pd–Pt/Al2O3/Alloy made its activity the best among that of all the catalysts studied over the entire temperature range (400–800°C) considered for methane combustion.

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© 2009 The Society of Chemical Engineers, Japan
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