Steam/CO2 Reforming of Methane Over Impregnated Ni/CeO2 Catalysts: Effect of Sample Composition on Their Activity and Stability Научная публикация
| Журнал |
Eurasian Chemico-Technological Journal
ISSN: 1562-3920 |
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| Вых. Данные | Год: 2022, Том: 24, Номер: 3, Страницы: 191-202 Страниц : 12 DOI: 10.18321/ectj1432 | ||||
| Ключевые слова | Ni catalyst, Ceria, Hydrogen, Syngas, Bi-reforming, Methane, Biogas | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0004 |
Реферат:
Steam/CO2 reforming of methane was studied at 600–900 °C, molar ratio CO2/H2O 0–2 and contact time 0.04–0.15 s over impregnated Ni/CeO2 catalysts of various compositions. It has been established that with an increase in the Ni content from 2 to 10 wt.%, both the conversion of reactants (X) and the yield of products (Y) increase in the range XCH4 25→80%, XCO2 35→72%, YH2 30→80%, YCO 30→75% (at 750 °C). With a further increase in the nickel content to 15%, the process parameters changed slightly, reaching a plateau. Higher nickel content (10 vs. 2 wt.%) ensures stable operation of the catalyst over time. The functional performance of the catalysts was correlated with physicochemical properties of as-synthesized, activated and spent samples using X-ray fluorescence analysis, low-temperature nitrogen adsorption, X-ray diffraction analysis, electron microscopy, and thermal analysis. It was shown that the Ni content affects the thermal stability, the textural, structural and redox characteristics of the samples. The 10% Ni/CeO2 catalyst was chosen as the optimal one due to higher H2 productivity, and sufficient resistance to sintering and coking. This sample provides a stable hydrogen yield of 85% in steam/CO2 reforming of methane at 800 °C, CO2/H2O = 2 and a contact time 0.15 s.
Библиографическая ссылка:
Matus Е.V.
, Sukhova O.B.
, Ismagilov I.Z.
, Ushakov V.A.
, Yashnik S.A.
, Kerzhentsev M.A.
, Ismagilov Z.R.
Steam/CO2 Reforming of Methane Over Impregnated Ni/CeO2 Catalysts: Effect of Sample Composition on Their Activity and Stability
Eurasian Chemico-Technological Journal. 2022. V.24. N3. P.191-202. DOI: 10.18321/ectj1432 WOS Scopus РИНЦ CAPlus OpenAlex
Steam/CO2 Reforming of Methane Over Impregnated Ni/CeO2 Catalysts: Effect of Sample Composition on Their Activity and Stability
Eurasian Chemico-Technological Journal. 2022. V.24. N3. P.191-202. DOI: 10.18321/ectj1432 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 7 февр. 2022 г. |
| Принята к публикации: | 4 мая 2022 г. |
| Опубликована в печати: | 10 окт. 2022 г. |
Идентификаторы БД:
| Web of science: | WOS:000932874900001 |
| Scopus: | 2-s2.0-85141391896 |
| РИНЦ: | 50065151 |
| Chemical Abstracts: | 2023:2151032 |
| OpenAlex: | W4308879917 |