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Catalysis in Industry

, Volume 10, Issue 3, pp 237–243 | Cite as

Studying the Effect of Magnesium on the Activity of a Deep Oxidation Catalyst for a Fluidized Bed in Methane and CO Oxidation Reactions

  • Yu. V. Dubinin
  • N. A. Tsereshko
  • A. A. Saraev
  • O. A. Bulavchenko
  • V. A. Yakovlev
DOMESTIC CATALYSTS

Abstract

A comparative study is performed on the activity of industrial and laboratory samples of CuO/Al2O3, MgO-Cr2O3/Al2O3, CuO-Cr2O3/Al2O3, and CuO/Al2O3MgO-Cr2O3 catalysts under fluidized bed conditions in model CO and CH4 oxidation reactions. For the combustion of gaseous fuels and gas mixtures (including low-percentage methane mixtures), aluminum–copper–magnesium–chromium catalysts are found to be the ones most promising. Studying their activity in the model reaction of methane oxidation while varying the content of magnesium in the composition of this catalytic system shows that the optimum magnesium content lies in the range of 1–2 wt %. The metals on the surfaces of these samples are found to be in the most stable states: Cu2+, Cr3+, Mg2+, and Al3+. The composition and textural and strength characteristics of the samples are studied by physicochemical means (BET, XPS, XRD, and X-ray fluorescence analysis).

Keywords:

catalysts deep oxidation methane CO fluidized bed flow-circulating mode 

Notes

ACKNOWLEDGMENTS

This work was supported by the Russian Science Foundation, project no. 17-73-30032.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • Yu. V. Dubinin
    • 1
  • N. A. Tsereshko
    • 1
  • A. A. Saraev
    • 1
  • O. A. Bulavchenko
    • 1
  • V. A. Yakovlev
    • 1
  1. 1.Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of SciencesNovosibirskRussia

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