The effects of residual chlorine on the behaviour of platinum group metals for oxidation of different hydrocarbons

Noel W. Cant*, Dennys E. Angove, Michael J. Patterson

*Corresponding author for this work

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The oxidation of a mixture of four hydrocarbons and carbon monoxide has been studied over alumina-supported palladium, platinum and rhodium catalysts made using chloride precursor salts. The order of the light-off temperatures for the hydrocarbons is the same for each metal (1-hexene, toluene, benzene and finally iso-octane) but the separation between each and their occurrence relative to carbon monoxide varies. The absolute values, especially for iso-octane, are strongly dependent on the pretreatment procedure. Exposure to H2/H2O in the place of O2 gives much higher activity. Activation can also be achieved by repeated runs with the reactant mixture. Chlorobenzene is produced in small amounts during experiments using partially activated catalysts especially with rhodium. Other reasons for believing that the development of activity is at least partly associated with the removal of chlorine are discussed.

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalCatalysis Today
Volume44
Issue number1-4
DOIs
Publication statusPublished - 30 Sep 1998

Keywords

  • chlorobenzene formation
  • effect of chlorine
  • hydrocarbon oxidation
  • palladium
  • platinum
  • rhodium

Fingerprint Dive into the research topics of 'The effects of residual chlorine on the behaviour of platinum group metals for oxidation of different hydrocarbons'. Together they form a unique fingerprint.

Cite this