Methane steam reforming over Ce-ZrO2-supported noble metal catalysts at low temperature

被引：82

作者：

Kusakabe, K

Sotowa, KI

Eda, T

Iwamoto, Y

机构：

[1] Kyushu Univ, Dept Appl Chem, Higashi Ku, Fukuoka 8128581, Japan

[2] Japan Fine Ceram Ctr, Atsuta Ku, Nagoya, Aichi 4568587, Japan

来源：

FUEL PROCESSING TECHNOLOGY | 2004年 / 86卷 / 03期

关键词：

reforming; methane; hydrogen; fuel cell; membrane reactor; rhodium;

D O I：

10.1016/j.fuproc.2004.05.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The steam reforming of methane to produce hydrogen as an energy source for use in a proton exchange membrane fuel cell over Ce-ZrO2-supported Ni, Pt, Ru and Rh catalysts was studied. In order to select highly active and stable reforming catalysts for use in a membrane reactor, methane conversion and CO selectivity were determined in a low-temperature range of 500-800 degreesC. Among the structures of Ce1-xZrxO2 support with a 10 wt.% Ni loading, the Ce0.15Zr0.85O2 showed the highest CH4 conversion at 500-600 degreesC and a high H-2/CO ratio due to the oxidation of CO via the water-gas shift reaction. The catalytic activity Of Ce1-xZrxO2-supported catalyst can be further improved by loading with Pt, Ru and Ph. The highest activity was obtained for a Rh/Ce0.15Zr0.85O2 catalyst for which the methane conversion was 28.1% at 500 degreesC. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：319 / 326

页数：8

共 13 条

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