Catalyst assisted by non-thermal plasma in dry reforming of methane at low temperature
| Autor: | Jean-Michel Tatibouët, Catherine Batiot-Dupeyrat, David Yap |
|---|---|
| Přispěvatelé: | Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Carbon dioxide reforming
Chemistry [CHIM.ORGA]Chemical Sciences/Organic chemistry 020209 energy Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry [CHIM.CATA]Chemical Sciences/Catalysis Nonthermal plasma 7. Clean energy Oxygen Catalysis Dissociation (chemistry) Methane chemistry.chemical_compound 13. Climate action Carbon dioxide 0202 electrical engineering electronic engineering information engineering ComputingMilieux_MISCELLANEOUS Syngas |
| Zdroj: | Catalysis Today Catalysis Today, Elsevier, 2018, 299, pp.263-271. ⟨10.1016/j.cattod.2017.07.020⟩ |
| ISSN: | 0920-5861 |
| DOI: | 10.1016/j.cattod.2017.07.020⟩ |
| Popis: | The transformation of methane and carbon dioxide into synthesis gas was performed by a plasma discharge coupled with a catalyst at room temperature and 300 °C. The combination of the catalyst with the discharge does not modify significantly the transformation of reactants at room temperature whereas at 300 °C, at which the catalyst alone (10% La2O3/alumina balls) is inactive, the CH4 conversion increases almost by a factor of 3 in comparison with inert glass balls, the CO2 conversion being only slightly increased. The synergy between plasma and catalyst is then clearly demonstrated at 300 °C whereas at room temperature the effect remains very low. It is proposed that the reaction between the oxygen species generated by CO2 dissociation in gas phase (CO2 splitting) replenish the surface oxygen species which have reacted with methane according to a Mars and Van Krevelen type mechanism. The catalyst surface modification under the plasma discharge was evidenced by Raman spectroscopy, a strong fluorescence effect being visible after reaction under plasma at 300 °C. |
| Databáze: | OpenAIRE |
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