TY - JOUR

T1 - Synthesis and Study of the Catalytic Properties of a Structured Rh-Containing Catalyst for the Conversion of Diesel Fuel into Synthesis Gas

AU - Shilov, V. A.

AU - Rogozhnikov, V. N.

AU - Potemkin, D. I.

AU - Snytnikov, P. V.

N1 - This study was supported by the Russian Science Foundation (grant no. 19-19-00257), https://rscf.ru/project/19-19-00257 . Публикация для корректировки.

PY - 2023/2

Y1 - 2023/2

N2 - 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 onto a FeCrAl grid from an aqueous solution of the nitrates Ce(NO3)3·6H2O and ZrO2(NO3)2·7–8H2O upon homogeneous hydrolysis with ammonia. It was demonstrated by XRD analysis that a greater amount of a cerium–zirconium oxide phase was formed in the sample obtained by coprecipitation, and this phase was more dispersed than that prepared by incipient wetness impregnation. 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 gCat-1 h–1 and the accumulation of sulfur did not affect the productivity of the catalyst for synthesis gas, which was ~8 m3 LCat-1 h–1.

AB - 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 onto a FeCrAl grid from an aqueous solution of the nitrates Ce(NO3)3·6H2O and ZrO2(NO3)2·7–8H2O upon homogeneous hydrolysis with ammonia. It was demonstrated by XRD analysis that a greater amount of a cerium–zirconium oxide phase was formed in the sample obtained by coprecipitation, and this phase was more dispersed than that prepared by incipient wetness impregnation. 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 gCat-1 h–1 and the accumulation of sulfur did not affect the productivity of the catalyst for synthesis gas, which was ~8 m3 LCat-1 h–1.

KW - autothermal reforming

KW - diesel fuel

KW - fuel cell

KW - hydrogen

KW - structured catalyst

KW - synthesis gas

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85161976685&origin=inward&txGid=5a6234c15293e49aed1656b77a3248d7

UR - https://www.mendeley.com/catalogue/e9e09d4a-daca-3bb6-ac86-38303bed71ab/

U2 - 10.1134/S002315842301007X

DO - 10.1134/S002315842301007X

M3 - Article

VL - 64

SP - 96

EP - 104

JO - Kinetics and Catalysis

JF - Kinetics and Catalysis

SN - 0023-1584

IS - 1

ER -