Modification of vpo catalysts for oxidative dehydrogenation of ethane

被引：0

作者：

Zazhigalov V.A. ^{[1
]}

Lopez Nieto J.M. ^{[2
]}

Solsona B. ^{[2
]}

Komashko G.A. ^{[1
]}

Bacherikova I.V. ^{[1
]}

Stoch J. ^{[3
]}

机构：

[1] L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31 Prospekt Nauki

[2] Universidad Politecnica de Valencia, Institute de Tecnologia Quimica, Avda los Naranjos s/n

[3] Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 1 Niezapominajek ul.

来源：

Theoretical and Experimental Chemistry | 1999年 / 35卷 / 5期

关键词：

Ethane; Bismuth; Oxidative Dehydrogenation; Vanadium Oxide; Bismuth Nitrate;

D O I：

10.1007/BF02511117

中图分类号：

学科分类号：

摘要：

Based on the previously discussed hypothesis concerning the mechanism of conversion of paraffins, we have modified the structure of VPO catalysts by developing the (220) plane of VOHPO4- 0.5H22O and introducing a bismuth additive. We have shown that this leads to an increase in the P/Vratio on the surface, an increase in the number of Lewis centers and the strength of such centers, and a change in the ratio of Lewis centers to Brönsted centers. The change in the surface characteristics of the samples, in accordance with the hypotheses, improves their properties in oxidative dehydrogenation of ethane, increasing the catalytic activity and the yield of the target product ethylene. ©1999 Kluwer Academic/Plenum Publisher.

引用

页码：275 / 279

页数：4

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