Direct conversion of ethane to ethylene oxide over NiAgYO catalyst |
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| Affiliation: | 1. DTU Chemical Engineering, Technical University of Denmark, Lyngby DK-2800, Denmark;2. DNV-GL Oil & Gas, Groningen 9704 CA, The Netherlands;3. Energy & Sustainabiliy Research Institute, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands;4. Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA;1. Department of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India;2. Materials Group, Bhabha Atomic Research Centre, Mumbai 400085, India;3. Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India |
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| Abstract: | NiAgYO catalyst prepared using sol–gel method exhibited better catalytic behavior than NiAgO for the direct conversion of ethane to ethylene oxide (EO). An optimal EO yield of 7.6% with 19.8% selectivity was obtained at 290 °C. The catalysts were characterized by X-ray diffraction (XRD), H2 temperature-programmed reduction (H2-TPR), O2 temperature-programmed desorption (O2-TPD), and X-ray photoelectron spectroscopy (XPS). The results showed that the interaction between Y and Ag made the absorbed oxygen species hold proper electrophilic character, thereby improving the performance of the NiAgYO catalyst. |
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