Study of unsupported and Al2O3 Or SiO2-supported nickel molybdate for oxireforming of ethane

被引：4

作者：

Boukhlouf, H. ^{[1
,2
]}

Benrabaa, R. ^{[2
]}

Barama, S. ^{[2
]}

Barama, A. ^{[2
]}

机构：

[1] EMP, UER CA, Macromol Chem Lab, Algiers, Algeria

[2] USTHB, Fac Chem, Chem Lab Nat Gas, Algiers 16111, Algeria

来源：

THIN FILMS AND POROUS MATERIALS | 2009年 / 609卷

关键词：

Ethane; ethylene; oxidative dehydrogenation; molybdenum based catalysts; OXIDATIVE DEHYDROGENATION; CATALYSTS;

D O I：

10.4028/www.scientific.net/MSF.609.145

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nickel molybdate unsupported and supported on alumina or silica were prepared by co-precipitation and co-precipitation/impregnation methods and calcined in air at 550 degrees C for 15h. The textural and structural properties of the solids have been studied using Brunner-Emmett-Teller surface analyze (BET), X-ray diffraction (XRD), Laser Raman Spectroscopy (LRS), scanning electron microscopy coupled with energy dispersive X-ray spectrometry (SEM-EDX), temperature-programmed reduction (TPR) and Atomic absorption spectroscopy (AAS). The catalytic activity measurements were performed in a fixed bed quartz reactor under the following experimental conditions: P = 1 atm, Tr = 470-650 degrees C, C2H6/O-2 = 2 and Wcat = 0.1 g. XRD, confirmed par LRS analysis, showed the presence of alpha-NiMoO4 and beta-NiMoO4 phases. The second one was only observed with the Al2O3 support. The Ni molybdate is a very selective catalyst in oxireforming of ethane with a selectivity consisted between 85 and 100%.

引用

页码：145 / +

页数：2

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