Reaction Kinetics, Mechanisms and Catalysis
Volume/Issue:
Volume 107: Issue 1
Oscillations of methane oxidation over metallic nickel surfaces
Authors:
Xuan Tang College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China

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Yefei Nan College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China

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Fenglin Huang College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China

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Xunli Zhang College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China
Engineering Sciences, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK

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Pages:
245–252
Online Publication Date:
14 Jun 2012
Publication Date:
01 Oct 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s11144-012-0461-1
Keywords:
Methane oxidation; Oscillations; Metallic nickel; Heterogeneous catalysis
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Abstract

The oscillatory behavior of the reaction of partial oxidation of methane has been investigated over metallic nickel surfaces. It was found that the chemical compositions and the reaction temperature within the reactor exhibited regular oscillations over a range of reactor temperatures between 710 and 930 °C with different feed gas compositions at flow rate ratios (Ar/CH4/O2) ranging from 30:29:1 to 30:12:18 cm3 min−1. When the reactor temperature increased, the oscillation frequency increased showing indicative correlations, while the amplitude decreased with the rise in system temperature. Varying feed gas composition resulted in complex changes in oscillatory waveforms, frequencies, amplitudes, and product selectivities. The oscillation was attributed to the cyclic reduction and oxidation of the nickel surface under the reaction conditions.

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Cover Reaction Kinetics, Mechanisms and Catalysis
Reaction Kinetics, Mechanisms and Catalysis
Print ISSN:
1878-5190
Online ISSN:
1878-5204

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation		 1974
Volumes
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Issues
per Year		 6
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)

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