Simulation and sensitivity analysis of the heterogeneous oxidation of methane on a platinum foil

• Verfasst von: Behrendt, Frank [VerfasserIn]
• Verfasst von: Deutschmann, Olaf [VerfasserIn]
• Verfasst von: Maas, Ulrich [VerfasserIn]
• Verfasst von: Warnatz, Jürgen [VerfasserIn]
• Titel: Simulation and sensitivity analysis of the heterogeneous oxidation of methane on a platinum foil
• Verf.angabe: F. Behrendt, O. Deutschmann, U. Maas, J. Warnatz
• Jahr: 1995
• Umfang: 5 S.
• Fussnoten: Gesehen am 17.05.2023
• Titel Quelle: Enthalten in: Journal of vacuum science & technology. A, Vacuum, surfaces, and films
• Ort Quelle: New York, NY : Inst., 1983
• Jahr Quelle: 1995
• Band/Heft Quelle: 13(1995), 3, Seite 1373-1377
• ISSN Quelle: 1520-8559
• DOI: doi:10.1116/1.579566
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1845611675

Abstract

The heterogeneous oxidation of methane-air mixtures in a stagnation point flow onto a platinum foil is investigated numerically and results are compared with experiments. The analysis includes detailed reaction mechanisms for the gas phase as well as the surface. Gas‐phase transport and its coupling to the surface is described using detailed multicomponent models. The heterogeneous ignition, extinction, and autothermal behavior are interpreted in terms of elementary steps at the gas-surface interface. A sensitivity analysis of the surface reactions is performed to identify crucial steps in the mechanism, thus pointing to those reactions for which better kinetic and thermodynamic data are needed urgently.