Potential of Ni supported on clinoptilolite catalysts for carbon dioxide reforming of methane

被引：57

作者：

Nimwattanakul, W ^{[1
]}

Luengnaruemitchai, A ^{[1
]}

Jitkarnka, S ^{[1
]}

机构：

[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2006年 / 31卷 / 01期

关键词：

carbon dioxide reforming of methane; clinoptilolite; Ni; zirconia;

D O I：

10.1016/j.ijhydene.2005.02.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon dioxide reforming of methane to synthesis gas has been investigated with Ni-supported clinoptilolite catalysts. The catalysts were prepared by using the incipient wetness impregnation method. The catalytic activity of Ni supported on clinoptilolite with varying Ni loadings was determined and the results showed that at 700 degrees C, 8 wt% Ni/clinoptilolite gave the highest activity. It exhibited not only the highest activity and selectivity but also remarkable stability. Moreover, both the activity and stability of this catalyst were observed to vary with the Zr content, exhibiting a maximum at a composition of 2% Zr. The amount of carbonaceous deposits on the spent catalysts was further investigated by temperature-programmed oxidation (TPO) and thermogravimetric analyzer (TGA) studies. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：93 / 100

页数：8

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