Implementation on Dense Oxygen Transport Media for Oxidative Coupling

Catalyst Implementation on Dense Oxygen Transport Media for Oxidative Coupling 

Methane coupUng chemistry has been reported [112, 113] in mixed conducting membranes of Bij 5Y0 3Smo 2O3. CoupHng selectivities as high as 54% and yields of 35% were obtained at 900 °C. The simultaneous oxidative coupHng of methane and oxidative dehydrogenation of ethane over a basic catalyst system has been reported [114], as well as the use of carbon dioxide as an oxidant in the methane/ ethane system[115]. In the latter case, ethylene content of up to 16% was obtained in the tail gas. 

Using membrane reactors, it has been found that incorporation of 10% ethane into a methane feed on the membrane oxidation surface can lead to a significant increase in ethylene yield [116]. In this work it was found that overall selectivity to ethylene was 94% and methane conversion 36%, indicating that the heuristic conversion -I- selectivity =100 % was significantly exceeded. 

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