Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas | Sciact - CRIS-system of Boreskov Institute of Catalysis

Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas Full article

Journal

Materials
ISSN: 1996-1944

Output data

Year: 2022, Volume: 15, Number: 20, Article number : 7336, Pages count : 14 DOI: 10.3390/ma15207336

Tags

steam reforming; autothermal reforming; propane; butane; structured catalysts

Authors

Ruban Natalia ^1,2 , Rogozhnikov Vladimir ^1,3 , Zazhigalov Sergey ¹ , Zagoruiko Andrey ¹ , Emelyanov Vyacheslav ^2,4 , Snytnikov Pavel ^1,2 , Sobyanin Vladimir ¹ , Potemkin Dmitriy ^1,2,5

Affiliations

1	Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
2	Faculty of Natural Science, Novosibirsk State University, Pirogova St., 2, 630090 Novosibirsk, Russia
3	Department of Physical and Colloid Chemistry, Faculty of Chemical Technology and Ecology, Gubkin Russian State University of Oil and Gas, Leninsky Pr., 65, 119991 Moscow, Russia
4	Nikolaev Institute of Inorganic Chemistry, Pr. Akademika Lavrentieva, 3, 630090 Novosibirsk, Russia
5	Department of Environmental Engineering, Novosibirsk State Technical University, Karl Marx Pr., 20, 630073 Novosibirsk, Russia

Funding (2)

1	Russian Foundation for Basic Research	19-33-60008 (АААА-А19-119111890028-9)
2	Russian Science Foundation	21-79-10377

Here, we report the preparation, characterization, and performance of reforming propane and n-butane into a syngas of composite structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = 0.46 wt.% Pt, 0.24 wt.% Rh, and 0.24 wt.% Ru) catalysts. The catalysts are composed of a high-heat-conducting FeCrAl block with preset geometry, with a surface nearly totally covered by θ-Al2O3. Afterwards, a layer of ceria–zirconia mixed oxide was deposited. The formed oxide coating was used as a support for 2–3 nm sized Pt, Rh, or Ru nanoparticles. The performance of the catalysts in propane steam reforming decreased in the order of Rh ≈ Ru > Pt. The reformates obtained in the propane steam reforming over Rh- and Ru/Ce0.75Zr0.25O2/Al2O3/FeCrAl at 600 °C and GHSV = 8300 h−1 contained 65.2 and 62.4 vol.% of H2, respectively, and can be used as a fuel for solid oxide fuel cells. In the oxidative steam reforming of propane at 700 °C and GHSV= 17,000 h−1, the activities of the Rh- and Pt-based catalysts were similar and the compositions of the outlet gas mixtures were quite close to equilibrium in both cases. Increasing the reagent flow rate to 25,600 h−1 showed stability of the Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl performance, whereas the Pt/Ce0.75Zr0.25O2/Al2O3/FeCrAl activity decreased. A mathematical model considering the velocity field, mass balance, pressure, and temperature distribution, as well as the reaction kinetics, was suggested for the propane steam and oxidative steam reforming over the Pt- and Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl catalysts. The model well described the experimental results.

Ruban N. , Rogozhnikov V. , Zazhigalov S. , Zagoruiko A. , Emelyanov V. , Snytnikov P. , Sobyanin V. , Potemkin D.
Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas
Materials. 2022. V.15. N20. 7336 :1-14. DOI: 10.3390/ma15207336 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	Sep 20, 2022
Accepted:	Oct 17, 2022
Published print:	Oct 20, 2022
Published online:	Oct 20, 2022

Web of science:	WOS:000873172100001
Scopus:	2-s2.0-85140841407
Elibrary:	50394424
Chemical Abstracts:	2022:2744165
PMID:	36295399
OpenAlex:	W4306952455

DB	Citing
Scopus	6
Web of science	5
Elibrary	5
OpenAlex	6