Evaluation of an in situ spatial resolution instrument for fixed beds through the assessment of the invasiveness of probes and a comparison with a micro-kinetic model

Jamal Touitou, Farid Aiouache, Robbie Burch, Roy Douglas, Christopher Hardacre, Kevin Morgan, Jacinto Sa, Caomhan Stewart, Jonathan Stewart, Alexandre Goguet*

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)
232 Downloads (Pure)

Abstract

This paper reports the detailed description and validation of a fully automated, computer controlled analytical method to spatially probe the gas composition and thermal characteristics in packed bed systems. This method has been designed to limit the invasiveness of the probe, a characteristic assessed using CFD. The thermocouple is aligned with the sampling holes to enable simultaneous recording of the gas composition and temperature profiles. This analysis technique has been validated by studying CO oxidation over a 1% Pt/Al2O3 catalyst. The resultant profiles have been compared with a micro-kinetic model, to further assess the strength of the technique. 

Original languageEnglish
Pages (from-to)239-246
Number of pages8
JournalJournal of Catalysis
Volume319
Early online date03 Oct 2014
DOIs
Publication statusPublished - Nov 2014

Keywords

  • Spatially resolved profiles
  • Micro-kinetic model
  • Computational fluid dynamics
  • CATALYTIC PARTIAL OXIDATION
  • STORAGE-REDUCTION CATALYST
  • RAY-ABSORPTION SPECTROSCOPY
  • GAS-PHASE REACTIONS
  • RH FOAM CATALYST
  • LEAN NOX TRAP
  • OXYGEN STORAGE
  • RESOLVED MEASUREMENTS
  • MASS-SPECTROMETRY
  • CARBON-MONOXIDE

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