Activities of δ-Al2O3-supported bimetallic Pt?NiO and Co?NiO catalysts for methane autoreforming: Oxidation studies |
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Authors: | K Opoku-Gyamfi Zahra M Tafreshi and A A Adesina |
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Institution: | (1) School of Chemical Engineering and Industrial Chemistry, University of New South Wales, 2052 Sydney, NSW, Australia |
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Abstract: | The methane oxidation activities of Pt−NiO and Co−NiO bimetallic catalysts have been investigated as part of a larger research
program on the autothermal reforming of methane (combined methane oxidation and steam reforming) in a fluidized bed reactor.
Experiments at atmospheric pressure and 783–1023 K for both catalysts showed that the reaction was more selective towards
H2 production at CH4∶O2 ratios greater than unity. Light-off temperature increased with decreasing CH4∶O2 ratios, but increase in gas velocity (beyond minimum fluidization) increased the light-off temperature. Co−NiO was as promising
as the more expensive Pt−NiO catalyst for the oxidation. |
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Keywords: | Methane oxidation bimetallic Pt Co NiO catalysts |
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