Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Bi-reforming of methane on Ni-based pyrochlore catalyst
KTH.
Show others and affiliations
2016 (English)In: Applied Catalysis A: General, ISSN 0926-860X, E-ISSN 1873-3875, Vol. 517, 211-216 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

A Ni-based pyrochlore catalyst was synthesized using the modified Pechini method. In this method, 1 wt% Ni was doped into the La2Zr2O7 pyrochlore structure. The catalyst was characterized by H2-TPR, TPO, XRD, and EXAFS, and tested for its methane reforming activity under bi-reforming reaction conditions; i.e.; in the presence of CO2 and steam: 3CH4+CO2+2H2O⇌4CO+8H2 Repeated TPR/TPO cycles showed that the two consecutive TPR spectra do not change, showing that the catalyst is stable at high temperatures, and that the nickel oxidation/reduction process is reversible. The catalyst showed constant activity with time at all temperatures in the range of 700-950 °C over a cumulative period of 170 h. After this series of bi-reforming tests, TPO of the spent catalyst was carried out, which showed detectable but unquantifiable carbon deposition. The presence of steam in bi-reforming greatly limits carbon deposition compared to directly related dry-reforming tests on this same catalyst.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 517, 211-216 p.
Keyword [en]
Bi-reforming, Dry-reforming, Methane activation, Pyrochlore, Reforming, Syngas, Carbon dioxide, Catalyst activity, Catalysts, Deposition, Methane, Nickel, Reforming reactions, Dry reforming, Modified Pechini method, Pyrochlore structures, Pyrochlores, Reaction conditions, Reforming of methane, Syn-gas, Steam reforming
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-186970DOI: 10.1016/j.apcata.2016.03.016ISI: 000375162100023Scopus ID: 2-s2.0-84961627476OAI: oai:DiVA.org:kth-186970DiVA: diva2:929910
Note

QC 20160520

Available from: 2016-05-20 Created: 2016-05-16 Last updated: 2016-05-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
L'Abbate, Mario Enrico
By organisation
KTH
In the same journal
Applied Catalysis A: General
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 17 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf