Insight into the effect of coexisting gases on the direct NO decomposition over Co-based mixed oxides

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Insight into the effect of coexisting gases on the direct NO decomposition over Co-based mixed oxides

Popis výsledku v původním jazyce

Contribution (POSTER) at the International Congress on Catalysis, 14.-19.7.2024, Lyon, FranceAir pollution caused by nitrogen oxides (NOx) produced in combustion facilities represents a serious problem for the environment and human health since NOx are responsible for the photochemical smog and the acid rains. There are technologies (selective catalytic reduction and selective non-catalytic reduction), which are used in deNOx processes, however, they require the use of reducing agent (NH3, urea). Nevertheless, the most attractive way for NOx emissions abatement is direct catalytic decomposition to N2 and O2.Up to now, considerable amount of studies about NO direct catalytic decomposition has been published [1], however, there is a lack of those decribing the effect of coexisting gases. Although the study of NO direct catalytic decomposition is still in the phase of basic research, it should not be overlooked that the presence of other gases affects the catalytic activity and point out that despite the excellent activity in inert gas, the catalyst in real conditions behaves differently. Among many catalysts which have been already studied (metals, metal oxides, mixed oxides, perovskites, zeolites etc.) for direct NO decomposition [1], Co-based mixed oxides modified by potassium showed high NO conversion and selectivity to N2 formation [2-5].

Název v anglickém jazyce

Insight into the effect of coexisting gases on the direct NO decomposition over Co-based mixed oxides

Popis výsledku anglicky

Contribution (POSTER) at the International Congress on Catalysis, 14.-19.7.2024, Lyon, FranceAir pollution caused by nitrogen oxides (NOx) produced in combustion facilities represents a serious problem for the environment and human health since NOx are responsible for the photochemical smog and the acid rains. There are technologies (selective catalytic reduction and selective non-catalytic reduction), which are used in deNOx processes, however, they require the use of reducing agent (NH3, urea). Nevertheless, the most attractive way for NOx emissions abatement is direct catalytic decomposition to N2 and O2.Up to now, considerable amount of studies about NO direct catalytic decomposition has been published [1], however, there is a lack of those decribing the effect of coexisting gases. Although the study of NO direct catalytic decomposition is still in the phase of basic research, it should not be overlooked that the presence of other gases affects the catalytic activity and point out that despite the excellent activity in inert gas, the catalyst in real conditions behaves differently. Among many catalysts which have been already studied (metals, metal oxides, mixed oxides, perovskites, zeolites etc.) for direct NO decomposition [1], Co-based mixed oxides modified by potassium showed high NO conversion and selectivity to N2 formation [2-5].

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20400 - Chemical engineering

Projekt

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Návaznosti

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Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů