Petroleum ChemistryPetroleum ChemistryНефтехимия0028-24213034-5626The Russian Academy of Sciences65563810.31857/S0028242123010070UKIEWEArticlesСтатьиResearch ArticleHigh-Performance Low-Vanadium V2O5/Al2O3 Catalysts for Selective Reduction of NOx: I. Catalytic PropertiesВысокоэффективные V2O5/Al2O3-катализаторы селективного восстановления NOox с пониженным содержанием ванадия: I. каталитические свойстваBokarevG. D.AБокаревГ. Д.Аpetrochem@ips.ac.ruBaevaG. N.БаеваГ. Нpetrochem@ips.ac.ruKazakovA. V.КазаковА. В.petrochem@ips.ac.ruMytarevaA. I.МытареваА. И.petrochem@ips.ac.ruStakheevA. Yu.СтахеевА. Ю.st@ioc.ac.ruZelinsky Institute of Organic Chemistry, Russian Academy of SciencesИнститут органической химии им. Н.Д. Зелинского РАН15022023631NO1 (2023)№1 (2023)808711022025Copyright ©; 2023, Russian Academy of SciencesCopyright ©; 2023, Российская академия наук2023Russian Academy of SciencesРоссийская академия наукhttps://journals.eco-vector.com/0028-2421/article/view/655638

The study investigates the potential for promoting V2O5/Al2O3 catalysts for selective catalytic reduction of nitrogen oxides with ammonia (NH3-SCR). It was found that the activity of low-V2O5 (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/Al2O3 catalyst that contains 4 wt % of V2O5 can achieve a NOx decomposition efficiency of 90% or even higher in the range of 360–500°C at a GHSV above 100,000 h–1

Изучена возможность промотирования катализаторов V2O5/Al2O3 процесса селективного каталитического восстановления оксидов азота аммиаком (NH3-селективное каталитические восстановление, NH3-СКВ). Установлено, что активность катализаторов с низким содержанием V2O5 (2-4 мас. %) может быть значительно (в 3-4 раза) повышена путем их промотирования оксидом вольфрама. Показано, что промотированный V-W/Al2O3-катализатор, содержащий 4 мас. % V2O5 обеспечивает эффективность удаления NO x более 90% в температурном диапазоне 360-500°С при объемной скорости более 100000 ч-1.

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