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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2012004877
pages 217-230

CATALYTIC IGNITION OF COLD HYDROGEN/OXYGEN MIXTURES FOR SPACE PROPULSION APPLICATIONS

Rachid Amrousse
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara, Kanagawa 252-5210, Japan
S. Keav
Institut des Milieux et des Materiaux de Poitiers (IC2MP), University of Poitiers, 86022 Poitiers Cedex, France
Yann Batonneau
CNRS UMR 7285, IC2MP, University of Poitiers, France
Charles J. Kappenstein
Université de Poitiers, CNRS, IC2MP, Poitiers, 86073, France
M. Theron
French Space Agency, Centre National d'Etudes Spatiales (CNES), 91023 Evry Cedex, France
P. Bravais
Air Liquide, Division des Techniques Avancees, 38360 Sassenage, France

RÉSUMÉ

An experimental bench test was conducted to evaluate the catalytic ignition of gaseous hydrogen and oxygen mixtures at low temperature by injection of cold gas mixtures on the catalytic microreactor. The selected supports for this study were cylindrical monoliths; i.e., cordierite honeycomb (600 channels per square inch) manufactured by CTI Company (Ceramiques & Techniques Industrielles). These materials were coated with porous γ-alumina to increase their specific surface area, and then impregnated by different metal precursors (Ir, Rh, Pt, and Ir−Rh). The premix gas reacted with the catalyst surface upon arrival in the combustion chamber. The first results led to a primary selection of different catalysts that allowed comparison with the different active phases. Based on the maximum temperature reached by the gas flow after a given time, we can sort the active phases as follows: Ir > Ir−Rh > Pt > Rh.


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