Abstract: The oxidation of ethylene to acetaldehyde by N2O on Na-modified FeZSM-5 zeolite in a flow mode was studied at a temperature of 300 to 375 °C and with varying the feed mixture ratio N2O:ethylene:He from 5:5:90 to 5:95:0. It was found that in this range of conditions, acetaldehyde could be produced with selectivity up to 55%. Other reaction products were COx, coke and some amount of unidentified products, which were mostly the result of non-oxidative transformations of ethylene. To study the mechanism of the reaction, we used a quasi-catalytic mode in the temperature range 150–200 °C. The products accumulated on the surface during the reaction in the quasi-catalytic mode could be extracted from the surface and identified using various analytical methods. This approach allowed us to determine that the primary product of ethylene oxidation is ethylene oxide, which then isomerizes into acetaldehyde. © 2019, Akadémiai Kiadó, Budapest, Hungary.

Cite: Parfenov M.V. , Pirutko L.V.
Oxidation of Ethylene to Acetaldehyde by N2O on Na-Modified FeZSM-5 Zeolite
Reaction Kinetics, Mechanisms and Catalysis. 2019. V.127. N2. P.1025-1038. DOI: 10.1007/s11144-019-01610-z WOS Scopus РИНЦ AN OpenAlex

Dates:

Submitted:	Apr 3, 2019
Accepted:	May 27, 2019
Published online:	Jun 4, 2019
Published print:	Aug 15, 2019

Identifiers:

Web of science:	WOS:000475580200031
Scopus:	2-s2.0-85067032029
Elibrary:	41622103
Chemical Abstracts:	2019:1090124
OpenAlex:	W2948289340

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