Catalytic properties of nitrided V/Al/O-mixed oxides in the ammoxidation of propane and new efficient preparation method for the catalysts
Catalytic properties of nitrided V/Al/O-mixed oxides in the ammoxidation of propane and new efficient preparation method for the catalysts
复制标题
氮化V/Al/O混合氧化物在丙烷氨氧化反应中的催化性能及其新型高效制备方法
DOI:
10.1016/j.cattod.2011.12.023
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发表时间:
--
期刊:
影响因子:
5.3
通讯作者:
J.-M. Millet
中科院分区:
文献类型:
--
作者:
J. Bilde;C. Janke;S. Loridant;A. Brückner;J.-M. Millet
V/Al/O oxides have been prepared and tested as catalysts for the ammoxidation of propane into acrilonitrile at 500°C. The high efficiency of these catalysts, which were partially nitrided under catalytic reaction conditions, is confirmed. The best catalysts characterized by a V/Al ratio around 0.30, exhibited selectivity to acrilonitrile of 51% at 58% conversion. Testing at low conversion showed that propene was the main primary product from propane ammoxidation and that the reaction pathway on these catalysts was similar to that on other efficient catalytic systems. A new method of synthesis based upon the decomposition at low temperature of a mixed ammonium aluminum–vanadium oxalate was developed. It leads to highly active catalysts, which displayed increased selectivity to acrylonitrile. The gain in activity and selectivity was attributed to a better dispersion of vanadium with a higher concentration of isolated vanadium species in the bulk and presumably at the surface of the catalysts.
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DOI:
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发表时间:
2003
期刊:
影响因子:
--
作者:
M. Florea;R. Prada;P. Grange
通讯作者:
P. Grange
DOI:
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发表时间:
2005
期刊:
影响因子:
--
作者:
M. Florea;R. P. Silvy;P. Grange
通讯作者:
P. Grange
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. Florea;R. P. Silvy;P. Grange
通讯作者:
P. Grange
影响因子:
0.5
作者:
M. Ezahri;G. Coffy;B. Mentzen
通讯作者:
B. Mentzen
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
R. P. Silvy;Nathalie Blangenois;M. Hamrouni;P. Grange;E. Gaigneaux
通讯作者:
E. Gaigneaux