Carbon deposition and gasification kinetics of used lanthanide-promoted Co-Ni/Al2O3 catalysts from CH4 dry reforming

S.Y. Foo; C.K. Cheng; T-H Nguyen; E.M. Kennedy; B.Z. Dlugogorski; A.A. Adesina

doi:10.1016/j.catcom.2012.06.003

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Carbon deposition and gasification kinetics of used lanthanide-promoted Co-Ni/Al2O3 catalysts from CH4 dry reforming

Journal article

Peer reviewed

Carbon deposition and gasification kinetics of used lanthanide-promoted Co-Ni/Al2O3 catalysts from CH4 dry reforming

S.Y. Foo, C.K. Cheng, T-H Nguyen, E.M. Kennedy, B.Z. Dlugogorski and A.A. Adesina

Catalysis Communications, Vol.26, pp.183-188

2012

DOI: https://doi.org/10.1016/j.catcom.2012.06.003

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Abstract

The kinetics of both carbon deposition and removal on lanthanide-promoted Co-Ni/Al 2O 3 dry reforming catalysts were investigated. Carbon deposition rate decreased with temperature in the range, 923-1023 K. Catalyst regeneration (via TPR-TPO-TPR and TPO-TPR) may be adequately modelled by the geometrical contracting volume gas-solid reaction model. Lanthanide promotion resulted in lower coke formation due to interaction of the rare-earth oxide with the more reactive surface carbonaceous matter in redox reactions, while the amount of the less reactive deposited carbon pool remained similar in all catalysts. Although both regeneration schemes studied were able to completely remove all carbon, samples from the TPO-TPR regime experienced marginal sintering.

Details

Title: Carbon deposition and gasification kinetics of used lanthanide-promoted Co-Ni/Al2O3 catalysts from CH4 dry reforming
Authors/Creators: S.Y. Foo (Author/Creator)
C.K. Cheng (Author/Creator) - UNSW Sydney
T-H Nguyen (Author/Creator) - UNSW Sydney
E.M. Kennedy (Author/Creator) - University of Newcastle Australia
B.Z. Dlugogorski (Author/Creator) - University of Newcastle Australia
A.A. Adesina (Author/Creator) - UNSW Sydney
Publication Details: Catalysis Communications, Vol.26, pp.183-188
Publisher: Elsevier B.V.
Identifiers: 991005542262807891
Copyright: © 2012 Elsevier B.V.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 2 Chemistry; 2.41 Catalysts; 2.41.546 Catalytic Hydrogenation
Web Of Science research areas: Chemistry, Physical
ESI research areas: Chemistry