Study of the dynamics of deactivation of Mn-containing zeolite catalyst in the process of propane conversion into olefin hydrocarbons | Vestnik Tomskogo gosudarstvennogo universiteta. Chimia – Tomsk State University Journal of Chemistry. 2025. № 40. DOI: 10.17223/24135542/40/2

Study of the dynamics of deactivation of Mn-containing zeolite catalyst in the process of propane conversion into olefin hydrocarbons

The coke formation process occurring on the surface of a manganese-containing zeolite catalyst during the conversion of propane to olefinic hydrocarbons was studied. Using ammonia thermal desorption and differential thermal analysis, it was shown that a significant change in the catalyst's acidic properties and the formation of coke deposits on its surface occur within the first hours of operation. The coke formed on the catalyst surface was found to be characterized by a low degree of polycondensation. The manganese-containing zeolite catalyst was shown to exhibit high selectivity and relatively high operational stability during the conversion of propane to olefinic hydrocarbons. Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests.

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Keywords

propane, olefinic hydrocarbons, activity, selectivity, stability, compaction products, coke

Authors

Name	Organization	E-mail
Vosmerikova Ludmila N.	Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences	lkplu@ipc.tsc.ru
Vosmerikov Anton A.	Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences	antonvosmerikov@gmail.com
Barbashin Yakov E.	Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences	dmps@ipc.tsc.ru
Vosmerikov Alexander V.	Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences; Tomsk State University	pika@ipc.tsc.ru

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