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The role of heterogeneous reactions during the oxidative coupling of methane over Li/MgO catalysts

โœ Scribed by J.M.N. van Kasteren; J.W.M.H. Geerts; K. van der Wiele

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
323 KB
Volume
6
Category
Article
ISSN
0920-5861

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โœฆ Synopsis

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,, selectivity of the process. Our reaction model of consecutive reactions is confirmed. The selectivity of the active catalyst is mainly due to very high rates of methyl radical production which couple in the gas phase.

๐Ÿ“œ SIMILAR VOLUMES

Oxidative coupling of methane over doped
Oxidative coupling of methane over doped Li/MgO catalysts
โœ G.C. Hoogendam; K. Seshan; J.G. van Ommen; J.R.H. Ross ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 475 KB

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.