Effects of catalyst heating rates upon the activity of silica-supported silicomolybdic acid catalysts for methane partial oxidation

被引：24

作者：

Kido, A ^{[1
]}

Iwamoto, H ^{[1
]}

Azuma, N ^{[1
]}

Ueno, A ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Engn, Dept Mat Sci, Hamamatsu, Shizuoka 4328561, Japan

来源：

CATALYSIS SURVEYS FROM JAPAN | 2002年 / 6卷 / 1-2期

关键词：

silica supported silicomolybdic acid; Kelvin; catalytic activity;

D O I：

10.1023/A:1020541200687

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：

Silica-supported silicomolybdic acid (SMA) catalysts showed a very high activity for partial oxidation of methane into formaldehyde at 873 K in the presence of an excess amount of water vapor in feed. However, the high activity was observed only when the catalysts were heated to 873 K with very high heating rates such as 100 K min(-1). In this article, the reason why these high heating rates are necessary to exhibit the higher catalytic activity into formaldehyde will be discussed based on the structural changes in SMA during heating the catalysts to 873 K.

引用

页码：45 / 53

页数：9

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