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Science 10 June 1994:
Vol. 264. no. 5165, pp. 1563 - 1566
DOI: 10.1126/science.264.5165.1563
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Articles

Methane to Ethylene with 85 Percent Yield in a Gas Recycle Electrocatalytic Reactor-Separator

Y. Jiang 1, I. V. Yentekakis 1, and C. G. Vayenas 1

1 Department of Chemical Engineering, University of Patras, Patras GR-26500, Greece

Methane was oxidatively coupled to ethylene with an ethylene yield up to 85 percent and a total C2 hydrocarbon yield up to 88 percent in a gas recycle high-temperature (800°C) electrocatalytic or catalytic reactor where the recycled gas passes continuously through a molecular sieve trap in the recycle loop. Oxygen is supplied either electrocatalytically by means of the solid electrolyte support of the silver-based catalyst or in the gas phase. The C2 products are obtained by subsequent heating of the molecular sieve trap. The selectivity to ethylene is up to 88 percent for methane conversion up to 97 percent.

Submitted on February 8, 1994
Accepted on April 25, 1994


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Ammonia Synthesis at Atmospheric Pressure.
G. Marnellos and M. Stoukides (1998)
Science 282, 98-100
   Abstract »    Full Text »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)