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Verlagsausgabe
DOI: 10.5445/IR/110103758
Veröffentlicht am 17.01.2018
Originalveröffentlichung
DOI: 10.3390/catal5020871
Scopus
Zitationen: 26
Web of Science
Zitationen: 27

Surface Reaction Kinetics of Steam- and CO₂-Reforming as Well as Oxidation of Methane over Nickel-Based Catalysts

Delgado, Karla Herrera; Maier, Lubow; Tischer, Steffen; Zellner, Alexander; Stotz, Henning; Deutschmann, Olaf

Abstract:
An experimental and kinetic modeling study on the Ni-catalyzed conversion of methane under oxidative and reforming conditions is presented. The numerical model is based on a surface reaction mechanism consisting of 52 elementary-step like reactions with 14 surface and six gas-phase species. Reactions for the conversion of methane with oxygen, steam, and CO₂ as well as methanation, water-gas shift reaction and carbon formation via Boudouard reaction are included. The mechanism is implemented in a one-dimensional flow field description of a fixed bed reactor. The model is evaluated by comparison of numerical simulations with data derived from isothermal experiments in a flow reactor over a powdered nickel-based catalyst using varying inlet gas compositions and operating temperatures. Furthermore, the influence of hydrogen and water as co-feed on methane dry reforming with CO₂ is also investigated.


Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -Technologie (IKFT)
Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 2073-4344
URN: urn:nbn:de:swb:90-AAA1101037585
KITopen ID: 110103758
HGF-Programm 37.03.01; LK 01
Erschienen in Catalysts
Band 5
Heft 2
Seiten 871-904
Schlagworte reaction kinetics, thermodynamic consistency, nickel, steam reforming, dry reforming, partial oxidation
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