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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 22, 2007
Accepted June 11, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hydrogen production by steam reforming of LNG over Ni/Al2O3-ZrO2 catalysts: Effect of ZrO2 and preparation method of Al2O3-ZrO2

Jeong Gil Seo Min Hye Youn Sunyoung Park Joohyung Lee Sang Hee Lee Howon Lee In Kyu Song^†

School of Chemical and Biological Engineering, Research Center for Energy Conversion and Storage, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-744, Korea

inksong@snu.ac.kr

Korean Journal of Chemical Engineering, January 2008, 25(1), 95-98(4), 10.1007/s11814-008-0016-3

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Abstract

An Al2O3-ZrO2 support was prepared by grafting a zirconium precursor onto the surface of commercial γ-Al2O3. A physical mixture of Al2O3-ZrO2 was also prepared for the purpose of comparison. Ni/Al2O3-ZrO2 catalysts were then prepared by an impregnation method, and were applied to the hydrogen production by steam reforming of liquefied natural gas (LNG). The effect ZrO2 and preparation method of Al2O3-ZrO2 on the performance of supported nickel catalysts in the steam reforming of LNG was investigated. The Al2O3-ZrO2 prepared by a grafting method was more efficient as a support for nickel catalyst than the physical mixture of Al2O3-ZrO2 in the hydrogen production by steam reforming of LNG. The well-developed tetragonal phase of ZrO2 and the high dispersion of ZrO2 on the surface of γ-Al2O3 were responsible for the enhanced catalytic performance of Ni/Al2O3-ZrO2 prepared by way of a grafting method.

Keywords

Hydrogen Liquefied Natural Gas (LNG) Steam Reforming Al2O3-ZrO2 Supported Nickel Catalyst

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