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Carbon dioxide reforming of methane over Co-X/ZrO2 catalysts (X = La, Ce, Mn, Mg, K)

Paper ID Volume ID Publish Year Pages File Format Full-Text
50615 46805 2010 6 PDF Available
Title
Carbon dioxide reforming of methane over Co-X/ZrO2 catalysts (X = La, Ce, Mn, Mg, K)
Abstract

Dry reforming of methane has been studied over Co/ZrO2 catalysts promoted with different metal additives (La, Ce, Mn, Mg, K) aiming to improve the performance of the catalysts and increase their resistance to coking. Scanning electron microscopy studies and different activity levels of the catalysts clearly show that the type of the promoter significantly affected the metal dispersion properties and catalytic performances of Co/ZrO2 catalysts. La-modified catalyst exhibited high stability, but moderate activity. It showed no severe coke deposition. Ce-doped Co/ZrO2 displayed the highest activity among all the catalysts prepared and had a very limited activity loss.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Type of the promoter affected dispersion and performances of Co/ZrO2 catalysts. ► Co/ZrO2 had high initial activity but it suffered from severe carbon deposition. ► La-modified catalyst exhibited high stability, but moderate activity. ► Ce-Co/ZrO2 displayed the highest activity and had a very limited activity loss.

Keywords
CO2 reforming of methane; Dry reforming of methane; Co/ZrO2 catalysts; Synthesis gas
First Page Preview
Carbon dioxide reforming of methane over Co-X/ZrO2 catalysts (X = La, Ce, Mn, Mg, K)
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 15, 25 September 2010, Pages 1165–1170
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis