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Oscillatory behaviour during the partial oxidation of methane over nickel foils

By X. Zhang, D.O. Hayward and D.M.P. Mingos


The study of the partial oxidation of methane over nickel foils has been carried out over a wide range of reactor temperatures (748-930 °C) and feed-gas compositions (Ar/CH4/O2), ranging from 30:29:1 to 30:12:18 cm3 min-1 at atmospheric pressure. The product formation shows pronounced oscillations. A modified thermocouple was designed to measure the temperature while the interposed nickel foil worked as a catalyst. The oscillations have been attributed to the cyclic reduction and oxidation of the nickel surface in the specific reaction environment at elevated temperatures

Topics: TP, QD
Year: 2002
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Provided by: e-Prints Soton

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