High-Performance Low-Vanadium V2O5/Al2O3 Catalysts for Selective Reduction of NOx: I. Catalytic Properties

The study investigates the potential for promoting V 2 O 5 /Al 2 O 3 catalysts for selective catalytic reduction of nitrogen oxides with ammonia (NH 3 -SCR). It was found that the activity of low-V 2 O 5 (2–4 wt %) catalysts can be markedly enhanced (by a factor of 3–4) by their promotion with tungs...

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Bibliographic Details
Published in:Petroleum chemistry 2023-03, Vol.63 (3), p.310-316
Main Authors: Bokarev, D. A., Baeva, G. N., Kazakov, A. V., Mytareva, A. I., Stakheev, A. Yu
Format: Article
Language:English
Subjects:
Aluminum oxide
Ammonia
Catalysts
Chemical reduction
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Nitrogen oxides
Selective catalytic reduction
Vanadium pentoxide
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Summary:The study investigates the potential for promoting V 2 O 5 /Al 2 O 3 catalysts for selective catalytic reduction of nitrogen oxides with ammonia (NH 3 -SCR). It was found that the activity of low-V 2 O 5 (2–4 wt %) catalysts can be markedly enhanced (by a factor of 3–4) by their promotion with tungsten oxide. It was shown that a promoted V–W/Al 2 O 3 catalyst that contains 4 wt % of V 2 O 5 can achieve a NO x decomposition efficiency of 90% or even higher in the range of 360–500°C at a GHSV above 100,000 h –1 .
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544123010085