UNCATALYZED AND MOO3-CATALYZED CARBON-OXYGEN REACTION - A KINETIC-STUDY

被引：25

作者：

SILVA, IF

LOBO, LS

机构：

[1] Departmento de Química, Universidade Nova de Lisboa

来源：

JOURNAL OF CATALYSIS | 1990年 / 126卷 / 02期

关键词：

D O I：

10.1016/0021-9517(90)90015-C

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：

A kinetic study was made of the reaction of activated carbon with oxygen, uncatalysed and catalysed by MoO3, using a microbalance to record the loss of weight as a function of time. Orders and activation energies were measured. MoO3 was found to be a moderate catalyst for this reaction. The effect of loading on reactivity is linear for low loadings and shows saturation above 2.5 wt%. It is proposed that this type of reaction, involving three phases and two interfaces, can be explained by surface catalysis at the gas/catalyst interface with continuous diffusion of carbon atoms through the catalyst. © 1990.

引用

页码：489 / 495

页数：7

共 17 条

[1] CONTROLLED ATMOSPHERE ELECTRON-MICROSCOPY STUDIES OF GRAPHITE GASIFICATION .3. CATALYTIC INFLUENCE OF MOLYBDENUM AND MOLYBDENUM TRIOXIDE [J].