K/Co-Mg-Mn-Al mixed oxide catalyst system for direct NO decomposition

Kód výsledku v IS VaVaI

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Nalezeny alternativní kódy

RIV/61989100:27730/19:10242531

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

K/Co-Mg-Mn-Al mixed oxide catalyst system for direct NO decomposition

Popis výsledku v původním jazyce

In this study, the effect of Mg partly substituting Co in the Co4MnAlOx mixed oxide catalyst subsequently modified by different potassium amount, maintaining (CoxMgy)/Mn/Al molar ratio constant, was studied. The prepared catalysts were characterized by XRD, BET, TPR-H2, TPD-CO2 and tested for direct NO decomposition in inert gas and in the presence of oxygen. Presence of magnesium and potassium in the Co4MnAlOx mixed oxide led to the significant increase in catalytic activity for decomposition of NO. Surprisingly, no direct correlation between NO conversion and magnesium content was observed. However, Mg in the catalysts affected stability of K at reaction temperatures positively. DeNO activity depended on the K amount. When the catalyst contained optimum amount of 1 - 2 wt. % K (Fig. 1), maximum NO conversion was achieved.

Název v anglickém jazyce

K/Co-Mg-Mn-Al mixed oxide catalyst system for direct NO decomposition

Popis výsledku anglicky

In this study, the effect of Mg partly substituting Co in the Co4MnAlOx mixed oxide catalyst subsequently modified by different potassium amount, maintaining (CoxMgy)/Mn/Al molar ratio constant, was studied. The prepared catalysts were characterized by XRD, BET, TPR-H2, TPD-CO2 and tested for direct NO decomposition in inert gas and in the presence of oxygen. Presence of magnesium and potassium in the Co4MnAlOx mixed oxide led to the significant increase in catalytic activity for decomposition of NO. Surprisingly, no direct correlation between NO conversion and magnesium content was observed. However, Mg in the catalysts affected stability of K at reaction temperatures positively. DeNO activity depended on the K amount. When the catalyst contained optimum amount of 1 - 2 wt. % K (Fig. 1), maximum NO conversion was achieved.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20700 - Environmental engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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