Studies of the preparation method of ceria-promoted nickel catalyst for carbon dioxide reforming of methane

The CO sub(2) reforming reactions of methane were carried out using an alumina-supported nickel catalyst. In order to reduce the coke deposition, the preparation methods of the ceria-promoted nickel catalysts were investigated. The physical mixing of CeO sub(2) realized a 50% reduction in the deposi...

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Published in:Applied catalysis. A, General General, 2014-03, Vol.474, p.100-106
Main Authors: Osawa, Tsutomu, Nakai, Yuto, Mouri, Aki, Lee, I-Yin Sandy
Format: Article
Language:English
Subjects:
Carbon dioxide
Catalysts
Coke
Deposition
Methane
Nickel
Reduction
Reforming
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Nakai, Yuto
Mouri, Aki
Lee, I-Yin Sandy
description The CO sub(2) reforming reactions of methane were carried out using an alumina-supported nickel catalyst. In order to reduce the coke deposition, the preparation methods of the ceria-promoted nickel catalysts were investigated. The physical mixing of CeO sub(2) realized a 50% reduction in the deposited coke per 1 mol of produced CO compared to the catalyst without CeO sub(2). Meanwhile, the catalyst prepared by the impregnation of nickel aluminate with a cerium nitrate solution followed by reduction under a hydrogen stream showed the lowest coke deposition activity. Particularly, the use of alumina prepared by the alkoxide method gave a 5.8% deposited coke produced by the catalyst without CeO sub(2). This type of nickel catalyst showed a high reforming activity without deactivation and a low coke deposition activity.
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subjects Carbon dioxide
Catalysts
Coke
Deposition
Methane
Nickel
Reduction
Reforming
title Studies of the preparation method of ceria-promoted nickel catalyst for carbon dioxide reforming of methane
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