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Naphthalene steam reforming over Mn-doped CeO2–ZrO2 supported nickel catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42237 45916 2010 6 PDF Available
Title
Naphthalene steam reforming over Mn-doped CeO2–ZrO2 supported nickel catalysts
Abstract

In this study, the catalytic activity of nickel supported on Ce0.75Zr0.25−xMnxO2 (x = 0, 0.10, 0.20 and 0.25) mixed oxide catalysts prepared by urea hydrolysis and incipient wetness impregnation was investigated for steam reforming of naphthalene selected as a model compound for biomass-derived tar. The results showed that nickel supported on Ce0.75Zr0.25−xMnxO2 mixed oxide catalysts exhibit good activity for naphthalene steam reforming. It was found that the amount of carbon deposition reduced substantially when Mn was introduced to the CeO2–ZrO2 mixed oxide. This might be due to the fact that the incorporation of manganese ions into the ceria lattice would improve the oxygen storage capacity and the oxygen mobility on the surface of mixed oxides, resulting in enhancing the gasification of the deposited carbon.

Graphical abstractThe effect of Mn addition into ceria–zirconia mixed oxide was investigated on the steam reforming of naphthalene, which was selected as a model compound for biomass-derived tar. It was found that the carbon deposited on Ni/Ce0.75Zr0.25−xMnxO2 (x = 0.10, 0.20 and 0.25) catalysts (1.1 ± 0.3 mg gcat−1) is much lower than that on Ni/α-Al2O3 and Ni/Ce0.75Zr0.25O2 catalysts (63.4 and 26.7 mg gcat−1, respectively).Figure optionsDownload full-size imageDownload high-quality image (112 K)Download as PowerPoint slide

Keywords
Naphthalene steam reforming; Ceria–zirconia; Manganese; Nickel
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Naphthalene steam reforming over Mn-doped CeO2–ZrO2 supported nickel catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 373, Issues 1–2, 31 January 2010, Pages 154–159
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
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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