Plasma assisted heterogeneous catalytic oxidation: HCCI Diesel engine investigations
| Autor: | Jacques Lavy, Michael J. Kirkpatrick, Emmanuel Odic, Stephane Zinola |
|---|---|
| Přispěvatelé: | Supélec Sciences des Systèmes (E3S), Ecole Supérieure d'Electricité - SUPELEC (FRANCE), IFP Energies nouvelles (IFPEN) |
| Rok vydání: | 2012 |
| Předmět: |
010302 applied physics
Diesel particulate filter Chemistry Process Chemistry and Technology Homogeneous charge compression ignition [SPI.NRJ]Engineering Sciences [physics]/Electric power Endothermic gas 02 engineering and technology Dielectric barrier discharge 021001 nanoscience & nanotechnology Diesel engine 01 natural sciences 7. Clean energy Catalysis Diesel fuel chemistry.chemical_compound Catalytic oxidation Chemical engineering 13. Climate action Environmental chemistry 0103 physical sciences 0210 nano-technology General Environmental Science Carbon monoxide |
| Zdroj: | Applied Catalysis B: Environmental Applied Catalysis B: Environmental, Elsevier, 2012, 117-118, pp.1-9. ⟨10.1016/j.apcatb.2011.12.022⟩ |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2011.12.022 |
| Popis: | International audience; A significant augmentation of the oxidation rate of carbon monoxide and unburned hydrocarbons has been previously demonstrated when the two processes of atmospheric pressure dielectric barrier discharge and Diesel oxidation catalysis were used simultaneously. In the case of carbon monoxide oxidation, the rate increase was attributed to a heterogeneous reaction of ozone with carbon monoxide. Ozone injection is investigated along with the direct application of the plasma to the gas upstream of a Diesel oxidation catalyst on a Diesel engine test bench. When used on the Diesel engine exhaust in steady state conditions, depending on the engine regime, the two processes had different effects on the gas composition. Both processes induced heating of the catalyst: while the plasma treatment of the entire gas flux heated the gas itself, and therefore also heated the catalyst, the injection of ozone heated the catalyst solely through the heat of reaction of ozone with the adsorbed species. Mechanisms for these effects are proposed and the performance of each approach is discussed in terms of energy cost and technical feasibility. |
| Databáze: | OpenAIRE |
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