Applied Petrochemical Research · 2014 · 53 citations · 20 references
Materials ScienceEthylene SelectivityChemical EngineeringCatalytic ApplicationEngineeringIndustrial CatalysisPhotocatalysisChromium SpeciesCatalysisChemistryCatalyst ActivationCatalytic ProcessCr2o3/al2o3–zro2 CatalystsCr2o3 CatalystsCatalytic SynthesisOxidative Dehydrogenation
Oxidative dehydrogenation of ethane to ethylene was investigated on Al2O3, ZrO2 and Al2O3–ZrO2 mixed oxide supported Cr2O3 catalysts taking O2 and CO2 as oxidants. The catalysts were characterized by nitrogen adsorption, X-ray diffraction, temperature-programmed reduction, and X-ray photoelectron spectroscopy. The catalytic activity depended on the chromium species formed on the surface. However, the selectivity to ethylene was influenced by the oxidizing agent (O2 or CO2). Temperature-programmed desorption of ethylene was employed to confirm the role of oxidant in deciding ethylene selectivity.
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