Hydrogen Production through Autothermal Reforming of CH4: Efficiency and Action Mode of Noble (M = Pt, Pd) and non-Noble (M = Re, Mo, Sn) Metal Additives in the Composition of Ni-M/Ce0.5Zr0.5O2/Al2O3 Catalysts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
International Journal of Hydrogen Energy
ISSN: 0360-3199
, E-ISSN: 1879-3487
|
| Вых. Данные |
Год: 2020,
Том: 45,
Номер: 58,
Страницы: 33352-33369
Страниц
: 18
DOI:
10.1016/j.ijhydene.2020.09.011
|
| Ключевые слова |
Hydrogen; Methane; Reforming; Ni catalyst; Promoter |
| Авторы |
Matus Ekaterina V.
1
,
Ismagilov Ilyas Z.
1
,
Yashnik Svetlana A.
1
,
Ushakov Vladimir A.
1
,
Prosvirin Igor P.
1
,
Kerzhentsev Mikhail A.
1
,
Ismagilov Zinfer R.
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Pr. Lavrentyeva 5, Novosibirsk, 630090, Russia
|
| 2 |
Federal Research Center of Coal and Coal Chemistry, Pr. Sovetsky 18, Kemerovo, 650000, Russia
|
|
Информация о финансировании (1)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0004
|
Hydrogen production through autothermal reforming of methane (ATR of CH4) over promoted Ni catalysts was studied. The control of the ability to self-activation and activity of Ni-M/Ce0.5Zr0.5O2/Al2O3 catalysts was achieved by tuning their reducibility through the application of different types (M = Pt, Pd, Re, Mo or Sn) and content (molar ratio M/Ni = 0.003, 0.01 or 0.03) of additive. The comparison of the efficiency and action mode of noble (M = Pt, Pd) and non-noble (M = Re, Mo, Sn) metal additives in the composition of Ni-M/Ce0.5Zr0.5O2/Al2O3 catalysts was performed using X-ray fluorescence analysis, N2 adsorption, X-ray diffraction, high-resolution transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, temperature-programmed reduction with hydrogen, and thermal analysis. The composition-characteristics-activity correlations were determined. It was shown that the introduction of a promoter does not affect the textural and structural properties of catalysts but influences their reducibility and performance in ATR of CH4. At the similar dispersion of NiO active component (11 ± 2 nm), the Ni2+ reduction is intensified in the following order of additives: Mo < Sn < Re ≤ Pd < Pt. It was found that for the activation of Ni and Ni–Sn catalysts before ATR of CH4 tests, the pre-reduction is required. On the contrary, the introduction of Pt, Pd and Re additives leads to the self-activation of catalysts under the reaction conditions and an increase of the H2 yield due to the enhanced reducibility of Ni2+. The efficient and stable catalyst for hydrogen production has been developed: in ATR of CH4 at 850 °C over an optimum 10Ni-0.9Re/Ce0.5Zr0.5O2/Al2O3 catalyst the H2 yield of 70% is attained. The designed catalyst has enhanced stability against oxidation and sintering of Ni active component as well as high resistance to coking.