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Methane selective oxidation to formaldehyde with Fe-catalysts supported on silica or incorporated into the support

Paper ID Volume ID Publish Year Pages File Format Full-Text
52269 46867 2008 6 PDF Available
Title
Methane selective oxidation to formaldehyde with Fe-catalysts supported on silica or incorporated into the support
Abstract

The selective oxidation of methane to formaldehyde was performed on iron (0.1–0.5 wt%) catalysts supported on silica prepared by the sol–gel method with (“Fe-dissolved”) or without (“Fe-precipitated”) pH control. SEM and TEM permits to differentiate the preparation methods which lead to a homogeneous composition sample or to the formation of iron isolated species, respectively. The Mössbauer analyses confirm the higher metal dispersion with pH control method. The catalytic activity was carried out between 400 and 750 °C. The “Fe-precipitated” catalysts display higher methane conversion but selectivity towards methanol, whereas the “Fe-dissolved” catalyst leads to the maximum formaldehyde yield.

Keywords
Methane; Partial oxidation; Formaldehyde; Iron oxide
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Methane selective oxidation to formaldehyde with Fe-catalysts supported on silica or incorporated into the support
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 864–869
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
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Full-text PDF Download
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