Activation of methane using solid oxide membranes

J.E. ten Elshof*, B.A. van Hassel, H.J.M. Bouwmeester

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

67 Citations (Scopus)
65 Downloads (Pure)

Abstract

Dense membranes of mixed-conducting perovskite-type oxides La0.6Sr0.4,CO0.8Fe0.2O3 and La0.8Ba0.2Co0.8Fe0.2O3 were used for methane coupling by application of pressure-driven O2 permeation. High operating temperatures, typically above 800°C, were needed to obtain reasonable oxygen fluxes. Conversions were small (1–3%). Both compositions showed comparable C2 selectivities at low methane partial pressures. At higher pressures the selectivity to C2 hydrocarbons for La0.6Sr0.4CO0.8Fe0.2O3 increased to 67%, whereas La0.8Ba0.2CO0.8Fe0.2O3 showed small C2 selectivities. Strong surface segregation of Sr and Ba was shown by SEM for both compositions.
Original languageEnglish
Pages (from-to)397-402
Number of pages7
JournalCatalysis today
Volume25
Issue number3-4
DOIs
Publication statusPublished - 1995

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