Combination of carbon dioxide reforming and partial oxidation of methane over supported platinum catalysts

被引：74
|
作者：
Souza, MMVM
Schmal, M
机构：
[1] Univ Fed Rio de Janeiro, NUCAT, PEQ, COPPE, BR-21945970 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Escola Quim, BR-21940900 Rio De Janeiro, Brazil
来源：
APPLIED CATALYSIS A-GENERAL | 2003年 / 255卷 / 01期
关键词：
CO2; reforming; methane; supported platinum catalysts; partial oxidation;
D O I：
10.1016/S0926-860X(03)00646-X
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：
CO2 reforming and partial oxidation of methane were carried out using Pt/Al2O3, Pt/ZrO2, and Pt/10%ZrO2/Al2O3 catalysts, in the temperature range 450-900degreesC. The Pt/10%(ZrO2Al2O3)-Al-/ was found to be the most active and stable catalyst for combined CO2 reforming and partial oxidation of methane. The addition of O-2 to the feed increases CH4 conversion and the catalyst stability. The deactivation is primarily due to coke formation, which was characterized by thermogravimetric analysis and transmission electron microscopy. The reduction of carbon deposition over zirconia-alumina catalyst is related to Pt-Zrn+ interactions and the high oxygen mobility on zirconia. (C) 2003 Elsevier B.V. All rights reserved.
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页码：83 / 92
页数：10
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