Structured catalysts for the conversion of liquefied petroleum gas to hydrogen-rich gas and for anode off-gas afterburning

V. N. Rogozhnikov, D. I. Potemkin, V. P. Pakharukova, V. D. Belyaev, V. V. Nedolivko, A. P. Glotov, V. A. Sobyanin, P. V. Snytnikov

Research output: Contribution to journalArticlepeer-review

Abstract

A number of mixed oxide Ce0.75Zr0.25O2 supports were prepared, tested for reproducibility, and characterized by physicochemical methods. The most reproducible preparation method was adapted for depositing the mixed oxide on a FeCrAlloy mesh substrate coated by a protective alumina layer. Based on the obtained structured Ce0.75Zr0.25O2/θ-Al2O3/FeCrAl support, the Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl and Pt/Ce0.75Zr0.25O2/Al2O3/FeCrAl catalysts were prepared and tested in the reactions of partial oxidation of LPG and deep oxidation of anode gases, respectively. Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl provided complete conversion of LPG into synthesis gas of a composition close to the equilibrium one. Pt/Ce0.75Zr0.25O2/Al2O3/FeCrAl provided complete conversion of all components of the anode gases at GHSV = 20,000–40,000 h−1; however, at higher GHSV values, methane conversion decreased. The studies on the effect of methane content on deep oxidation of anode off gases showed that methane conversion began to decrease at a 1.5-fold excess of methane and dropped to 50% at a 10-fold excess of methane.

Original languageEnglish
Pages (from-to)35853-35865
Number of pages13
JournalInternational Journal of Hydrogen Energy
Volume46
Issue number72
Early online date16 Apr 2021
DOIs
Publication statusPublished - 19 Oct 2021

Keywords

  • Anode gases
  • Oxidation
  • Preparation
  • Structured catalysts
  • Synthesis gas

OECD FOS+WOS

  • 2.07 ENVIRONMENTAL ENGINEERING
  • 1.07 OTHER NATURAL SCIENCES
  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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