Efficient Hydrogen Production by Combined Reforming of Methane over Perovskite-Derived Promoted Ni Catalysts Full article
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Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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| Output data | Year: 2024, Volume: 154, Pages: 6359–6377 Pages count : 19 DOI: 10.1007/s10562-024-04805-9 | ||
| Tags | Fuel · Hydrogen · Methane · Combined reforming · Ni catalyst · Promotion | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0033 |
Abstract:
Efficient production of H2 by combined (steam/CO2; steam/O2) reforming of CH4 was comparatively studied over perovskite-derived promoted Ni catalysts. The process performance was improved by regulating the redox and structural properties of the LaNi0.99M0.01O3 catalysts through promotion (M = Pt, Pd, Re, Mo, Sn). The catalysts were synthesized using the citrate sol–gel method, tested in combined reforming of methane and studied by X-ray fluorescence analysis, thermal analysis, N2 adsorption, X-ray diffraction, electron microscopy, temperature-programed hydrogen reduction to elucidate the impact of catalyst properties on their activity and resistance to re-oxidation and formation of carbon deposits under reaction conditions. It was shown that LaNi0.99M0.01O3 catalysts after calcination at 850 °C in air have a perovskite structure that was destroyed after reductive activation with formation of metal Nio particles with an average size of ~ 25 nm on the surface of lanthanum oxide/hydroxide. The resistance to re-oxidation of Nio particles depends on the type of promoter and is maximum in the case of M = Re. It was established that the type of promoter affects the conversion of reagents (CH4, CO2) and the H2 yield, which at 700 °C increases in the series of promoters Sn < Mo < Pt < Pd < Re in the case of steam/CO2 reforming and Pt < Sn < Mo < Pd < Re with steam/O2 reforming. The optimal composition of catalyst was identified: among the studied samples, LaNi0.99Re0.01O3 is characterized by a higher specific surface area, average reduction ability and high resistance to re-oxidation and coking. At 850 °C it provides the H2 yield of 95 and 50% at complete CH4 conversion in steam/CO2 and steam/O2 reforming, respectively.
Cite:
Matus E.V.
, Kovalenko E.N.
, Sukhova O.B.
, Yashnik S.A.
, Ismagilov I.Z.
, Kerzhentsev M.A.
, Khairulin S.R.
Efficient Hydrogen Production by Combined Reforming of Methane over Perovskite-Derived Promoted Ni Catalysts
Catalysis Letters. 2024. V.154. P.6359–6377. DOI: 10.1007/s10562-024-04805-9 WOS Scopus AN OpenAlex
Efficient Hydrogen Production by Combined Reforming of Methane over Perovskite-Derived Promoted Ni Catalysts
Catalysis Letters. 2024. V.154. P.6359–6377. DOI: 10.1007/s10562-024-04805-9 WOS Scopus AN OpenAlex
Dates:
| Submitted: | Jul 12, 2024 |
| Accepted: | Aug 27, 2024 |
| Published online: | Sep 13, 2024 |
| Published print: | Dec 1, 2024 |
Identifiers:
| Web of science: | WOS:001313285300001 |
| Scopus: | 2-s2.0-85204135013 |
| Chemical Abstracts: | 2024:1979797 |
| OpenAlex: | W4402527932 |