Ruthenium Dioxide Catalysts for the Selective Oxidation of Benzylamine to Benzonitrile: Investigating the Effect of Ruthenium Loading on Physical and Catalytic Properties

Emily Catherine Nordvang, Leonhard Schill, Anders Riisager, Rasmus Fehrmann

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The oxidative dehydrogenation of benzylamine to benzonitrile was studied in batch and continuous flow processes using ruthenium dioxide catalysts with varying ruthenium loadings. Increased conversions were observed in the continuous flow process compared with the batch process (up to 100% in the flow process compared with up to 92% in the batch process), with increased selectivity to benzonitrile (82 and 65%, respectively) and benzonitrile yields (84 and 58%, respectively). The major by-product was N-benzylidenebenzylamine. The ruthenium loading in the catalyst was successfully optimised and the most active catalyst had a ruthenium loading of 2.5-3.5 wt%.
Original languageEnglish
JournalTopics in catalysis
Volume60
Issue number17-18
Pages (from-to)1149-1461
ISSN1022-5528
DOIs
Publication statusPublished - 2017

Keywords

  • Benzonitrile synthesis
  • Effect of ruthenium loading
  • Oxidative dehydrogenation of benzylamine
  • Ruthenium dioxide

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