Oxidativní dehydrogenace propanu pomocí N2O na Fe-MFI zeolitech s různou koncentrací železa připravených různými metodami.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F04%3A00001863" target="_blank" >RIV/00216275:25310/04:00001863 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Oxidative Dehydrogenation of Propane by N2O over Fe-MFI Zeolites with Various Concentration of Iron and Prepared by Different Methods

Popis výsledku v původním jazyce

The catalytic performance of FeMFI zeolites in oxidative dehydrogenation of propane (ODHP) with N2O and O2 is discussed in this paper. A set of Fe-MFI samples was investigated which differed in the concentration of iron, ways of preparation and activation. Iron species in zeolites do not significantly activate molecular oxygen, as all the investigated zeolites exhibited low activity in the propane oxidation with molecular oxygen. The yield of propene reached a maximum of 2%. On contrary, particularly over steamed Fe-zeolites, propane oxidation with nitrous oxide resulted in high propene yields, and formation of propanal and acetone. The reaction sequence appears to follow propane-propanol-propene-propanal-COx reaction pathway. Sites exhibiting acidic properties (Broensted and Lewis sites), if present, yield significant amount of C4 hydrocarbons and aromates, and are responsible for the catalysts deactivation by coke. Steam-activated Fe-zeolites exhibited much higher activity than calci

Název v anglickém jazyce

Oxidative Dehydrogenation of Propane by N2O over Fe-MFI Zeolites with Various Concentration of Iron and Prepared by Different Methods

Popis výsledku anglicky

The catalytic performance of FeMFI zeolites in oxidative dehydrogenation of propane (ODHP) with N2O and O2 is discussed in this paper. A set of Fe-MFI samples was investigated which differed in the concentration of iron, ways of preparation and activation. Iron species in zeolites do not significantly activate molecular oxygen, as all the investigated zeolites exhibited low activity in the propane oxidation with molecular oxygen. The yield of propene reached a maximum of 2%. On contrary, particularly over steamed Fe-zeolites, propane oxidation with nitrous oxide resulted in high propene yields, and formation of propanal and acetone. The reaction sequence appears to follow propane-propanol-propene-propanal-COx reaction pathway. Sites exhibiting acidic properties (Broensted and Lewis sites), if present, yield significant amount of C4 hydrocarbons and aromates, and are responsible for the catalysts deactivation by coke. Steam-activated Fe-zeolites exhibited much higher activity than calci

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F03%2F1120" target="_blank" >GA104/03/1120: Katalytická amoxidace propanu</a><br>

Návaznosti

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

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Scientific Papers of the University of Pardubice, Series A

ISSN

1211-5541

e-ISSN

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Svazek periodika

Neuveden

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

20

Strana od-do

215-234

Kód UT WoS článku

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EID výsledku v databázi Scopus

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