Abstract
A comparison has been made of the behaviour in the oxidative coupling of methane of a Ba/CaO catalyst with that of a Li/MgO material. Doping of CaO with BaCO3 resulted in a catalyst which is more active at lower reaction temperatures than is BaCO3. The active oxygen entity in the case of Ba/CaO is probably an O2-2 species. Ba/CaO is more stable but less selective than is Li/MgO. The effect of residence time was studied for both Ba/CaO and Li/MgO. The direct oxidation of methyl radicals to give carbon monoxide and carbon dioxide plays a more important role in the case of Ba/CaO than is the case with Li /MgO.
Original language | English |
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Pages (from-to) | 291-309 |
Number of pages | 19 |
Journal | Applied Catalysis |
Volume | 59 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1990 |
Externally published | Yes |