Low Temperature Steam Reforming of Ethanol Over Supported Noble Metal Catalysts

被引：89

作者：

Basagiannis, Aristides C. ^{[1
]}

Panagiotopoulou, Paraskevi ^{[1
]}

Verykios, Xenophon E. ^{[1
]}

机构：

[1] Univ Patras, Dept Chem Engn, Patras 26504, Greece

来源：

TOPICS IN CATALYSIS | 2008年 / 51卷 / 1-4期

关键词：

Ethanol steam reforming; Noble metal catalyst; Ru; Rh; Pt; Pd; Al2O3; Hydrogen production;

D O I：

10.1007/s11244-008-9130-z

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The catalytic activity of M/Al2O3 catalysts for the reaction of steam reforming of ethanol has been investigated in the temperature range of 300-450 degrees C. It has been found that the catalytic performance varies in the order of Pt > Pd > Rh > Ru, with Pt exhibiting high activity and selectivity toward hydrogen production, as well as long term stability at low temperatures. It is shown that the reaction occurs in a bifunctional manner, with the participation of both the dispersed metallic phase and the support. Ethanol interacts strongly with the Al2O3 carrier, promoting mainly ethanol dehydration, while in the presence of Pt, catalytic activity is shifted toward lower temperatures. Ethanol decomposition and dehydrogenation reactions dominate at low temperatures, while reforming, water-gas shift and methanation contribute significantly to product distribution.

引用

页码：2 / 12

页数：11

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