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Supported indium oxide as novel efficient catalysts for dehydrogenation of propane with carbon dioxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
42337 45921 2010 7 PDF Available
Title
Supported indium oxide as novel efficient catalysts for dehydrogenation of propane with carbon dioxide
Abstract

In2O3–MOx binary mixed metal oxide catalysts (M: Al, Zn, Zr, Ti, Fe, Mg, Si, and Ce) prepared by a coprecipitation or sol–gel method have been tested for the dehydrogenation of propane to propylene in the presence of carbon dioxide. Several techniques including N2 adsorption/desorption, X-ray diffraction, H2-temperature-programmed reduction and X-ray photoelectron spectroscopy were applied to characterize the physicochemical properties of the as-synthesized materials. Catalytic tests showed that all In-containing samples were active in the CO2-promoted dehydrogenation of propane with good propylene selectivity. Among the In2O3–MOx catalysts tested, the In2O3–Al2O3 sample containing a 20 mol% indium content showed the highest dehydrogenation activity with superior long-term stability. The specific interaction between In2O3 and Al2O3 leading to a high component dispersion is suggested to play a key role in regulating the redox and structural properties of surface indium species, which makes the In2O3–Al2O3 composite highly active and stable for the reaction.

Graphical abstractThe dehydrogenation of propane over In2O3–MOx (M: Al, Zn, Zr, Ti, Fe, Mg, Si, and Ce) mixed metal oxide catalysts, which were prepared by a coprecipitation or sol–gel method, in the presence of CO2 was investigated. High activity and stability were achieved on the In2O3–Al2O3 catalyst with a 20 mol% indium content, giving a propylene yield of 27% without any observable trend of deactivation in 24 h.Figure optionsDownload full-size imageDownload high-quality image (49 K)Download as PowerPoint slide

Keywords
Indium oxide; Dehydrogenation; Propane; Propylene; Carbon dioxide
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Supported indium oxide as novel efficient catalysts for dehydrogenation of propane with carbon dioxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 377, Issues 1–2, 1 April 2010, Pages 35–41
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