Synthesis and Study of Catalytic Properties of Rh-Containing Structured Catalyst for Diesel Fuel Conversion into Synthesis Gas

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Abstract

In this work, we improved the technique for depositing the active oxide Ce0.75Zr0.25O2 – δ on a structured FeCrAl alloy substrate. The essence of the method is the coprecipitation of cerium and zirconium oxides on a FeCrAl grid from an aqueous solution of their nitrates Ce(NO3)3·6H2O and ZrO2(NO3)2·7–8H2O during homogeneous hydrolysis with ammonia. It was shown by XRD analysis that in the sample obtained by co-precipitation, more cerium-zirconium oxide phase is formed, moreover, it is more dispersed than obtained by impregnation technique. This method contributes to the formation of a coating with a larger specific surface area. The developed catalyst has a high activity under the conditions of autothermal reforming of diesel fuel. In the course of life tests for 200 h, it was found that the carbonization of the catalyst at a rate of 8.6 mgc \({\text{g}}_{{{\text{cat}}}}^{{ - 1}}\) h–1, as well as the accumulation of sulfur, did not affect the productivity of the catalyst with respect to synthesis gas, which was ~ 8 m3 \({\text{L}}_{{{\text{cat}}}}^{{ - 1}}\) h–1.

About the authors

V. A. Shilov

Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Science; Novosibisk State University

Author for correspondence.
Email: sva@catalysis.ru
Russia, 630090, Novosibirsk, Prosp. Akad. Lavrentieva, 5; Russia, 630090, Novosibirsk, Pirogova, 2

V. N. Rogozhnikov

Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Science

Email: sva@catalysis.ru
Russia, 630090, Novosibirsk, Prosp. Akad. Lavrentieva, 5

D. I. Potemkin

Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Science; Novosibisk State University

Email: sva@catalysis.ru
Russia, 630090, Novosibirsk, Prosp. Akad. Lavrentieva, 5; Russia, 630090, Novosibirsk, Pirogova, 2

P. V. Snytnikov

Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Science

Email: sva@catalysis.ru
Russia, 630090, Novosibirsk, Prosp. Akad. Lavrentieva, 5

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