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Mesoporous silica-supported chromium catalyst: Characterization and excellent performance in dehydrogenation of propane to propylene with carbon dioxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
52888 46890 2007 6 PDF Available
Title
Mesoporous silica-supported chromium catalyst: Characterization and excellent performance in dehydrogenation of propane to propylene with carbon dioxide
Abstract

Nonordered mesoporous molecular sieves MSU-x supported chromium catalysts (Cr/MSU-x) were prepared and characterized with X-ray diffraction, diffuse reflectance UV–vis, and H2-temperature programmed reduction techniques. Excellent results in dehydrogenation of propane to propylene with carbon dioxide (CO2) over Cr/MSU-x, 36.8% of propane conversion with 89.1% of propylene selectivity, were obtained. Lower Cr loading results in formation of Cr species with higher oxidation state, whereas higher Cr loading leads to bulk chromium oxide (Cr2O3) crystal on catalyst surface. The active sites of the catalysts and the promoting effect of mesoporous MSU-x as support were also discussed.

Keywords
Propane dehydrogenation; Cr/MSU-x; Active sites; Carbon dioxide
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Mesoporous silica-supported chromium catalyst: Characterization and excellent performance in dehydrogenation of propane to propylene with carbon dioxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 565–570
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
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