Reaction routes for hydrogenation of acetylene-ethylene mixtures using a double labelling method

J. Margitfalvi, L. Guczi, A. H. Weiss

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Hydrogenation of C2H2:C2H4 mixtures using a double labelling method has been studied. Both in the presence and absence of ethylene the rate of acetylene hydrogenation on its partial pressure proceeds through a maximum and the rate is higher when ethylene is added. Using14C-C2H2 it was demonstrated that at low acetylene partial pressures the main route of acetylene hydrogenation was the formation of ethane and C4 hydrocarbons. Using14C-C2H4 it was also shown that at certain acetylene partial pressures the formation of ethane from ethylene completely ceased. Different surface species are suggested and a reaction mechanism is proposed.

Original languageEnglish
Pages (from-to)475-479
Number of pages5
JournalReaction Kinetics and Catalysis Letters
Issue number4
Publication statusPublished - Dec 1981


ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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