Aging and activation of α-NiMoO4 catalyst for selective propane oxydehydrogenation into propene

被引：6

作者：

Del Rosso, R ^{[1
]}

Kaddouri, A ^{[1
]}

Fumagalli, D ^{[1
]}

Mazzocchia, C ^{[1
]}

Gronchi, P ^{[1
]}

Centola, P ^{[1
]}

机构：

[1] Politecn Milan, Dept Ind Chem & Chem Engn, I-20133 Milan, Italy

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1999年 / 68卷 / 02期

关键词：

aging; polymorphic nickel molybdate; propane activation;

D O I：

10.1007/BF02475499

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：

Increase in catalytic activity performance of a stoichiometric NiMoO4 system has been studied using a periodic flow reactor system. Aging results in an increase of selectivity, a decrease in BET surface area, a weak decrease in activity and a change in surface morphological properties. alpha-Nickel molybdate exposed to the reaction gases and temperature tends to transform progressively toward an alpha-aged phase more and more like to the most selective beta-phase.

引用

页码：175 / 181

页数：7

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