Lanthanum Catalysts for CH4 Oxidative Coupling: A Comparison of the Reactivity of Phases

R. Paul Taylor, Glenn L. Schrader

Research output: Contribution to journalArticle

88 Scopus citations

Abstract

The catalytic performance of A-La2O3, La(OH)3, II-La2O2C03, and La2CO3)3 for the catalytic oxidative coupling of methane to C2 hydrocarbons was investigated over a range of reaction temperatures (up to 850 °C). The activity of the starting materials for methane conversion and selectivity to ethylene and ethane were in the order II-La2O2CO3 > La2(CO3)3 > La(OH)3 > A-La2O3. Postreaction characterization by Fourier transform infrared spectroscopy and X-ray diffraction revealed that these materials undergo significant transformations. On the basis of this information, the presence of the oxycarbonate phase appears to have a beneficial effect on catalytic performance.

Original languageEnglish (US)
Pages (from-to)1016-1023
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume30
Issue number5
DOIs
StatePublished - May 1 1991

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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