Performance of Bifunctional СuO–CeO2/γ-Al2O3 Catalyst in Dimethoxymethane Steam Reforming to Hydrogen-Rich Gas for Fuel Cell Feeding
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Applied Catalysis B: Environmental
ISSN: 0926-3373
, E-ISSN: 1873-3883
|
| Output data |
Year: 2015,
Volume: 166-167,
Pages: 535-543
Pages count
: 9
DOI:
10.1016/j.apcatb.2014.12.008
|
| Tags |
Copper-ceria-alumina, Dimethoxymethane, Dimethyl ether, Hydrogen, Methanol |
| Authors |
Pechenkin A.A.
1,2
,
Badmaev S.D.
1,2
,
Belyaev V.D.
1,2
,
Sobyanin V.A.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, Pirogova St., 2, Novosibirsk 630090, Russia
|
|
Funding (3)
|
1
|
Russian Foundation for Basic Research
|
14-03-00457
|
|
2
|
Council for Grants of the President of the Russian Federation
|
МК-2199.2013.3
|
|
3
|
The Ministry of Education and Science of the Russian Federation
|
|
Dimetoxymethane steam reforming (DMM SR) to hydrogen-rich gas over a bifunctional СuO–CeO2/γ-Al2O3 catalyst was studied. The performance of γ-Al2O3, CeO2/γ-Al2O3, and СuO/γ-Al2O3 under DMM SR conditions was studied as well to elucidate the role of each catalyst component. BET, TPR, FTIR spectroscopy, XRD, TEM, EDXA and HAADF-STEM techniques were used for catalyst characterization. Complete DMM conversion was observed over the СuO–CeO2/γ-Al2O3 catalyst under atmospheric pressure, T = 300 °C, GHSV = 10,000 h−1 and H2O/DMM = 5 mol/mol with hydrogen productivity of 15.5 L H2/(gcat·h) and CO content in the hydrogen-rich gas below the equilibrium value. DMM SR proceeds via a consecutive two-step reaction mechanism including DMM hydration to methanol and formaldehyde on γ-Al2O3 acid sites and steam reforming of the formed methanol and formaldehyde to hydrogen-rich gas on alumina-supported mixed copper–cerium oxide species. The СuO–CeO2/γ-Al2O3 catalyst proved to be highly promising for multi-fuel processor approach: steam reforming of DMM, dimethyl ether and methanol on the same catalyst under similar reaction conditions to hydrogen-rich gas for fuel cell feeding.