Water Gas Shift and Partial Oxidation of CH4 over CeO2–ZrO2(–La2O3) and Pt/CeO2–ZrO2(–La2O3): Performance Under Transient Conditions
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Chemical Engineering Journal
ISSN: 1385-8947
, E-ISSN: 1873-3212
|
| Output data |
Year: 2014,
Volume: 257,
Pages: 281-291
Pages count
: 11
DOI:
10.1016/j.cej.2014.07.039
|
| Tags |
Methane oxidation, Nanocrystalline ceria-zirconia, Transient kinetics, WGS |
| Authors |
Pinaeva L.G.
1
,
Sadovskaya E.M.
1,2
,
Ivanova Yu.A.
1
,
Kuznetsova T.G.
1
,
Prosvirin I.P.
1,2
,
Sadykov V.A.
1,2
,
Schuurman Y.
3
,
van Veen A.C.
3,4
,
Mirodatos C.
3
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
|
| 2 |
Novosibirsk State University, 630090 Novosibirsk, Russia
|
| 3 |
University of Lyon – Institut de recherches sur la catalyse et l’environnement de Lyon (IRCELYON, UMR 5256, CNRS – Université Claude Bernard Lyon 1), 69626 Villeurbanne Cedex, France
|
| 4 |
School of Engineering, The University of Warwick, Coventry CV4 7AL, UK
|
|
Funding (3)
|
1
|
European Commission
|
228953 FP7-NMP-2008-LARGE-2 OCMOL
|
|
2
|
European Commission
|
604296 FP7-NMP-2013-LARGE-7 BIOGO
|
|
3
|
The Ministry of Education and Science of the Russian Federation
|
|
Nanocrystalline ceria-zirconia(-lanthana) based fluorite-like oxide solid solutions prepared via polymerized complex precursor route, with or without supported Pt, have been used for detailed transient kinetic studies of water gas shift (WGS) and partial oxidation of methane (POM) at 650 °C and short (∼10−2 s) contact times. It was shown that high bulk oxygen mobility and storage capacity characterizing nanocrystalline structure of ceria–zirconia and regulated by the partial substitution of Ce for La are responsible for vigorous CO2 evolution during start-up regimes. At the same time, it favors preferential methane and CO oxidation on Pt particles, thus revealing a crucial importance of Pt cluster structure.