Catalytic performance of structured packages coated with perovskite-based nanocomposite in the methane steam reforming reaction

Ludmilla N. Bobrova, Vladislav A. Sadykov, Natalya V. Mezentseva, Vladimir V. Pelipenko, Nadezhda V. Vernikovskaya, Oleg P. Klenov, Oleg L. Smorygo

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A conventional Ni + YSZ/YSZ anode half-cell (the Research Center Jülich) and the Ni + YSZ/YSZ planar half cell washcoated by a layer of the Ru + Ni-doped perovskite-based nanocomposite (Ru + Ni/LaPrMnCr/YSZ) were compared in terms of their activities and selectivities in the steam reforming of methane. The kinetic measurements were carried out in a laboratory scale plate-type reactor, and results were interpreted using computational models. A power-law kinetic model was verified against the experimental data, and parameters were estimated. Both numerical prediction and experimental testing indicate that the nanocomposite coated Ni + YSZ/YSZ plate shows much better catalytic performance under the middle-temperature operating conditions. CFD simulations show that for the high activity of thermally conductive catalytic plates, superior heat transfer performance is observed in the lab-scale reactor. The lab-scale data were successfully up-scaled for the case of steam reforming of natural gas on a structured catalyst at realistic operation conditions. Up to 700°C, the pilot test data obtained with the structured catalyst comprised of three stacked parallel Ni-Al plates (50 × 50 × 1 mm) coated with perovskite-based nanocomposite correlate quite good with the 1-D plug-flow reactor model predictions assuming the proposed kinetics.

Original languageEnglish
Pages (from-to)4632-4645
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number8
DOIs
Publication statusPublished - 2 Mar 2016

Keywords

  • CFD simulations
  • Methane
  • Ni + YSZ/YSZ anode half-cell
  • Plate-type reactor
  • Ru + Ni-doped perovskite-based nanocomposite
  • Steam reforming

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