Studies on the stability of a La0.8Pr0.2NiAl11O19 catalyst for syngas production by CO2 reforming of methane

Studies on the stability of a La0.8Pr0.2NiAl11O19 catalyst for syngas production by CO2 reforming of methane

CO2 reforming of CH4 was studied over a magnetoplumbite-type hexaaluminate La0.8Pr0.2NiAl11O19 catalyst, which showed very high activity for over 300 h without deactivation at 1023 K. This catalyst showed good resistance to carbon deposition, which in this reaction and in CH4 decomposition was inves...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Catalysis letters 2003, Vol.85 (1-2), p.101-107
Hauptverfasser: Liu, Yan, Cheng, Tiexin, Li, Dongmei, Jiang, Pengbo, Wang, Junxia, Li, Wenxing, Bi, Yingli, Kaiji Zhen
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Carbon dioxide
Catalysis
Catalysts
Catalysts: preparations and properties
Chemistry
Deactivation
Decomposition reactions
Exact sciences and technology
General and physical chemistry
Methane
Reforming
Synthesis gas
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:CO2 reforming of CH4 was studied over a magnetoplumbite-type hexaaluminate La0.8Pr0.2NiAl11O19 catalyst, which showed very high activity for over 300 h without deactivation at 1023 K. This catalyst showed good resistance to carbon deposition, which in this reaction and in CH4 decomposition was investigated by means of XPS and TEM. It is suggested that nano-tube-like carbon is an intermediate in this reaction and a spillover of carbon from crystalline Ni onto the hexaaluminate oxide occurred during the reaction.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1022181110569