Modified lanthanum catalysts for oxidative chlorination of methane

Elvira Peringer, Michael Salzinger, Markus Hutt, Angeliki A. Lemonidou, Johannes A. Lercher

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Mixtures of LaOCl and LaCl3 are promising catalysts for oxidative chlorination of methane to methyl chloride. The influence of metal dopants such as Co, Ni and Ce, which form stable chlorides under anticipated reaction conditions, on physicochemical and catalytic properties was explored. The presence of markedly redox-active dopants such as cobalt and cerium lead to a higher rate of methane conversion. However, the formed methyl chloride is strongly adsorbed and directly oxidized to CO leading to low methyl chloride selectivity. Doping with nickel weakens, in contrast, the interaction with methyl chloride leading to high methyl chloride selectivity.

Original languageEnglish
Pages (from-to)1220-1231
Number of pages12
JournalTopics in Catalysis
Volume52
Issue number9
DOIs
StatePublished - Aug 2009

Keywords

  • LaCl
  • LaOCl
  • Methane
  • Methane oxidative chlorination
  • Methyl chloride

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