Oxidative coupling of methane using Li/MgO catalyst: Re-appraisal of the optimum loading of Li |
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| Authors: | Graham J. Hutchings Michael S. Scurrell Jeremy Woodhouse |
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| Affiliation: | (1) Catalysis Research Programme, Department of Chemistry, University of the Witwatersrand, PO Wits, 2050 Johannesburg, South Africa;(2) Division of Energy Technology, CSIR, PO Box 395, 0001 Pretoria, South Africa;(3) Present address: Leverhulme Centre for Innovative Catalysis, Department of Chemistry, University of Liverpool, PO Box 147, L69 3BX Liverpool, UK |
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| Abstract: | The effect of the level of lithium carbonate doping on MgO, prepared by thermal decomposition of the basic carbonate, is re-examined. A low, sub monolayer, loading, ie. 0.2% Li2CO3-MgO is shown to significantly enhance both the specific activity for methane activation and the total C2 hydrocarbon selectivity. The study indicates that the optimal loading of alkali promoters on MgO prepared in this way is considerably lower than indicated in previous studies. |
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| Keywords: | Methane oxidation oxidative coupling magnesium oxide lithium-doped magnesium oxide |
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