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Direct conversion of ethane to ethylene oxide over NiAgYO catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
51151 46832 2013 5 PDF Available
Title
Direct conversion of ethane to ethylene oxide over NiAgYO catalyst
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.

Graphical abstractEthylene oxide could be directly synthesized from ethane over the NiAgYO catalyst, with higher selectivity to ethylene oxide and ethylene compared with NiAgO.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► NiAgYO catalyst can directly convert ethane to ethylene oxide. ► The selectivity and yield to EO were improved remarkably on NiAgYO than NiAgO. ► The doped Y plays the roles of separator and electron acceptor. ► High valent silver is favorable for adsorption of O2- and epoxidation reaction.

Keywords
Ethylene oxide; Direct conversion; Ethane; NiAgYO
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Direct conversion of ethane to ethylene oxide over NiAgYO catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 30, 5 January 2013, Pages 51–55
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us