6533b860fe1ef96bd12c3b1e
RESEARCH PRODUCT
Oxidative dehydrogenation of ethane: A study over the structure and robustness of Ni–W–O catalysts
Ana DejozBenjamín SolsonaJ.m. López NietoIsabel VázquezSaid AgouramF. Ivarssubject
inorganic chemicalsEthyleneHydrogenGeneral Chemical EngineeringCatalyst supportInorganic chemistryEnergy Engineering and Power Technologychemistry.chemical_elementCatalysisMethaneCatalysisEthylenechemistry.chemical_compoundDehydrogenationNickel tungstenOxidative dehydrogenation of ethaneOxide catalystsEthaneChemistryorganic chemicalsNickel oxideCokeFuel TechnologyNi-W-OHydrogenOxidative dehydrogenationdescription
[EN] The robustness of one selected Ni-W-O catalyst has been studied in the oxidative dehydrogenation of ethane. This catalyst initially deactivates for the first 10 h online decreasing 15% of its catalytic activity compared to its initial stable catalytic activity. However from 10 to 60 h online the catalytic activity keeps almost stable. On the other hand, it has been shown that the Ni-W-O catalyst cannot tolerate an oxygen-free atmosphere (C-2 and He) as nickel oxide is transformed into metallic nickel. Methane and hydrogen as well as abundant coke were formed on the surface of the catalyst in these O-free conditions. However a re-calcination in air leads to the removal of coke, the catalytic performance in the oxidative dehydrogenation of ethane being almost completely restored.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-03-01 | Fuel Processing Technology |