Catalytic combustion of methane over commercial catalysts in presence of ammonia and hydrogen sulphide

被引：33

作者：

Hurtado, P ^{[1
]}

Ordóñez, S ^{[1
]}

Vega, A ^{[1
]}

Díez, FV ^{[1
]}

机构：

[1] Univ Oviedo, Dept Environm Chem & Engn, E-33006 Oviedo, Spain

来源：

CHEMOSPHERE | 2004年 / 55卷 / 05期

关键词：

methane oxidation; noble metal catalysts; metal oxide catalysts; sulphur poisoning;

D O I：

10.1016/j.chemosphere.2003.10.068

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The performance of different commercially available catalysts (supported Pd, Pt, Rh, bimetallic Pd Pt, and Cr-Cu-Ti oxide catalyst) for the oxidation of methane, alone and in presence of ammonia and hydrogen sulphide is studied in this work. Catalysts performance was evaluated both in terms of activity and resistance to poisoning. The main conclusions are that supported Pd and Rh, present the highest activities for methane oxidation, both alone and in presence of ammonia, whereas they are severely poisoned in presence of H2S. Pt and Cr-Cu-Ti are less active but more sulphur resistant, but their activity is lower than the residual activity of sulphur-deactivated Pd and Rh catalysts. The Pd-Pt catalyst exhibits low activity and it is quickly deactivated in presence of hydrogen sulphide. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：681 / 689

页数：9

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