Ammoxidation of propane to acrylonitrile on V---Sb---O catalysts. Role of ammonia in the reaction pathways期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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

Authors:	H W Zanthoff S A Buchholz and O Y Ovsitser

Affiliation:	^aLehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780, Bochum, Germany ^b Boreskov Institute of Catalysis, Novosibirsk, 630090, Russian Federation

Abstract:	Transient experiments in the vacuum on the ammoxidation of propane over VSb₅O_x- and VSb₅O_x(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 NH_x.-species, most probably NH_3,ads or NH⁺₄, are active species in the formation of acrylonitrile from propane. These species are also involved in the formation of the non-selective side-product N₂, which is formed via the intermediates NO and N₂O.

Keywords:	Ammoxidation of propane Acrylonitrile V---Sb---O catalysts Ammonia
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