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Low temperature combustion of ethylene in a carbon dioxide stream over a cordierite monolith-supported Cu–Mn Hopcalite catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
40957 45872 2012 6 PDF Available
Title
Low temperature combustion of ethylene in a carbon dioxide stream over a cordierite monolith-supported Cu–Mn Hopcalite catalyst
Abstract

Complete combustion of trace amount of ethylene in food-grade carbon dioxide is examined over a copper-manganese Hopcalite monolithic catalyst which is prepared with co-precipitation of Hopcalite powder, followed by washcoating on cordierite monolith via a dip-coating method. It is shown that the combustion activity of the Hopcalite monolithic catalyst is closely dependent on the washcoat loading and calcination temperature, and that the calcination temperature has a great effect on the adhesion strength of the Hopcalite washcoat. It is proposed that the catalyst combustion activity originates from a synergic effect of the CuO and amorphous Cu–Mn oxide phases. Solid reaction between the Hopcalite washcoat and cordierite monolith not only improves the adhesion strength of the Hopcalite washcoat, but also prevents the formation and growing of the Cu1.5Mn1.5O4 crystalline particles and thus develops the combustion activity. Furthermore, it leads to doping of Mg in the Hopcalite washcoat, which improves the catalytic stability of the Hopcalite monolithic catalyst.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (113 K)Download as PowerPoint slideHighlights► Cordierite monolith-supported Cu–Mn Hopcalite catalyst was prepared by a dip-coating method. ► Solid reaction between the Hopcalite washcoat and cordierite monolith was observed. ► Solid reaction improves the adhesion strength and catalytic stability of the monolithic catalyst.

Keywords
Ethylene combustion; Hopcalite catalyst; Monolithic catalyst; Adhesion strength; Carbon dioxide purification
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Low temperature combustion of ethylene in a carbon dioxide stream over a cordierite monolith-supported Cu–Mn Hopcalite catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 427–428, 15 June 2012, Pages 73–78
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