Oxidative coupling of methane over doped Li/MgO catalysts
โ Scribed by G.C. Hoogendam; K. Seshan; J.G. van Ommen; J.R.H. Ross
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 475 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0920-5861
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โฆ Synopsis
A series of zirconia doped Li/MgO catalysts with a fixed amount of zirconia and varying concentrations of lithium was used for the oxidative coupling of methane. It was found that an increase in lithium concentration resulted in a decrease in initial activity, while the selectivity was not affected. The life-time of Zr doped Li/MgO catalysts with a fixed concentration of ZrOz is a function of the lithium concentration. Previous results have shown that Li2Mg3Zr06 is active and selective but it is now shown to be instable under reaction conditions.
๐ SIMILAR VOLUMES
## SUMNARY The role of heterogeneous and homogeneous reactions during the oxidative coupling of methane over Li/MgO was investigated by carrying out experiments at reduced pressure (60 Pa). The conclusion is that the radical reactions occurring in the gas phase play an essential role in the C,, se