Axial and transversal patterns during CO oxidation in fixed beds

Olga Nekhamkina, Moshe Sheintuch*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


This work analyses the possible axial- and transversal thermal spatio-temporal patterns that may emerge in a two-dimensional thin annular catalytic bed model using a detailed micro-kinetic model for CO oxidation. This work is motivated by experimental IR-imaging observations made with a cylindrical catalytic surface impregnated with Pd. Stationary, oscillating- and travelling axial-pulses are shown to emerge, in agreement with the experimentally observed axial patterns, and simulations, backed by linear analysis, show that transversal patterns may emerge as well. The implications for fixed-bed reactor modelling are discussed.

Original languageEnglish
Pages (from-to)4948-4953
Number of pages6
JournalChemical Engineering Science
Issue number18-20
StatePublished - Sep 2007
Externally publishedYes


  • Catalysis
  • Mathematical modelling
  • Nonlinear dynamics
  • Packed bed
  • Reaction engineering


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