Efficient Hydrogen Production by Combined Reforming of Methane over Perovskite-Derived Promoted Ni Catalysts | Sciact - CRIS-система Института катализа

Efficient Hydrogen Production by Combined Reforming of Methane over Perovskite-Derived Promoted Ni Catalysts Научная публикация

Журнал

Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X

Вых. Данные

Год: 2024, Том: 154, Страницы: 6359–6377 Страниц : 19 DOI: 10.1007/s10562-024-04805-9

Ключевые слова

Fuel · Hydrogen · Methane · Combined reforming · Ni catalyst · Promotion

Авторы

Matus E.V. ¹ , Kovalenko E.N. ¹ , Sukhova O.B. ¹ , Yashnik S.A. ¹ , Ismagilov I.Z. ¹ , Kerzhentsev M.A. ¹ , Khairulin S.R. ¹

Организации

1	Boreskov Institute of Catalysis SB RAS, 5 Academician Lavrentiev Avenue, Novosibirsk 630090, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

FWUR-2024-0033

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.

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 CAPlus OpenAlex

Поступила в редакцию:	12 июл. 2024 г.
Принята к публикации:	27 авг. 2024 г.
Опубликована online:	13 сент. 2024 г.
Опубликована в печати:	1 дек. 2024 г.

Web of science:	WOS:001313285300001
Scopus:	2-s2.0-85204135013
Chemical Abstracts:	2024:1979797
OpenAlex:	W4402527932

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