Oxidative dehydrogenation of isobutane over magnesium molybdate catalysts

被引：0

作者：

Zhang, YJ

Rodríguez-Ramos, I

Guerrero-Ruiz, A

机构：

[1] CSIC, Inst Catalisis & Petroleoquim, Madrid 28049, Spain

[2] Univ Nacl Educ Distancia, Dept Quim Inorgan, Madrid 28040, Spain

来源：

CATALYSIS TODAY | 2000年 / 61卷 / 1-4期

关键词：

oxidative dehydrogenation; isobutane; magnesium molybdate catalysts;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of Mo-Mg-O catalysts with different crystalline phases (pure and mixtures) have been studied in the oxidative dehydrogenation of isobutane. X-ray diffraction, UV-Vis spectroscopy and temperature programmed reduction were applied to characterise the samples. In addition, the kinetics of the lattice oxygen exchange with labelled (CO2)-O-18 was measured for all samples. It has been found that the MgMoO4 phase contains the surface active sites suitable for the adsorption of isobutane and for its dehydrogenation to isobutene with the minimum of cracking reaction. Moreover, for this reaction the migration of lattice oxygen ions is not a key parameter in the control of the catalytic properties of these materials. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：377 / 382

页数：6

共 15 条

[11] Anaerobic oxidation of butane to butadiene over magnesium molybdate catalysts .1. Magnesia supported catalysts [J].