Catalysts | |
Surface Reaction Kinetics of Steam- and CO2-Reforming as Well as Oxidation of Methane over Nickel-Based Catalysts | |
Karla Herrera Delgado2  Lubow Maier1  Steffen Tischer1  Alexander Zellner2  Henning Stotz2  Olaf Deutschmann2  | |
[1] Institute for Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany; E-Mails:;Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany; E-Mails: | |
关键词: reaction kinetics; thermodynamic consistency; nickel; steam reforming; dry reforming; partial oxidation; | |
DOI : 10.3390/catal5020871 | |
来源: mdpi | |
【 摘 要 】
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.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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RO202003190011882ZK.pdf | 11751KB | download |