Journal
CHEMICAL ENGINEERING SCIENCE
Volume 181, Issue -, Pages 46-57Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2018.01.038
Keywords
Propane; Hydrogen production; Kinetic mechanism; Partial oxidation; Cerium oxide
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Funding
- Carnot Institute for Energy and Environment in Lorraine (ICEEL)
- CNRS
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A kinetic experimental study of the catalytic partial oxidation of propane was performed in an isothermal catalytic jet stirred reactor which has the ability to modify the ratio of the catalyst surface to the gas volume. The main goal of this study was to elucidate the detailed heterogeneous-homogeneous mechanism of this reaction and explore the capacity to produce H-2. The catalyst used in this study was pellets of cerium oxide CeO2. Various operating parameters were considered: temperature, residence time, contact time and amount of catalyst. A hetero-homogeneous mechanism, composed of 71 elementary steps at the catalyst surface and 937 homogeneous gas phase reactions is proposed and validated by comparison between experimental results and simulated results over a large range of temperatures (200 < T < 800 degrees C), residence times (2 < tau < 6 s), number of catalyst pellets (0-8). The interactions between gas phase reactions and surface reactions are discussed. (C) 2018 Elsevier Ltd. All rights reserved.
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