Ammoxidation of propane to acrylonitrile on V-Sb-O catalysts. Role of ammonia in the reaction pathways

被引：24

作者：

Zanthoff, HW ^{[1
]}

Buchholz, SA ^{[1
]}

Ovsitser, OY ^{[1
]}

机构：

[1] BORESKOV INST CATALYSIS,NOVOSIBIRSK 630090,RUSSIA

来源：

CATALYSIS TODAY | 1996年 / 32卷 / 1-4期

关键词：

ammoxidation of propane; acrylonitrile; V-Sb-O catalysts; ammonia;

D O I：

10.1016/S0920-5861(96)00078-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Transient experiments in the vacuum on the ammoxidation of propane over VSb5Ox- and VSb5Ox(30 wt%)/Al2O3 catalysts were performed. Additionally, the interaction of ammonia with the catalysts was investigated by means of TPD and DRIFT spectroscopic studies. The reported results reveal that short lived NHx-species, most probably NH3, ads or NH4+, are active species in the formation of acrylonitrile from propane. These species are also involved in the formation of the non-selective side-product N-2, which is formed via the intermediates NO and N2O.

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收藏

页码：291 / 296

页数：6

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