Modification of Acidic Properties of the Support for Pt–Sn/BEA Propane Dehydrogenation Catalysts

Ivanushkin, G.G.; Smirnov, A.V.; Kots, P.A.; Ivanova, I.I.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 сентября 2019 г.

Авторы: Ivanushkin G.G., Smirnov A.V., Kots P.A., Ivanova I.I.
Журнал: Petroleum Chemistry
Том: 59
Номер: 7
Год издания: 2019
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 733
Последняя страница: 738
DOI: 10.1134/S0965544119070077
Аннотация: Platinum–tin catalysts for propane dehydrogenation supported on a zeolite of the BEA framework type are studied. The presence of acid sites on the support leads to the occurrence of side reactions, which inhibit the achievement of a high propylene selectivity. To decrease the acidity of the support, the zeolite is subjected to dealumination with the preservation of the crystalline structure. The deposition of tin on this support leads to the incorporation of tin atoms into the zeolite framework, as confirmed by IR spectroscopy of adsorbed deuterated acetonitrile. The subsequent deposition of platinum leads to the occurrence of the Pt–Sn interaction, which provides a high selectivity for the target product and an increase in the agglomeration resistance of the active phase. In the presence of samples containing 0.5% of platinum and 0.5–1.0% of tin, at a reaction temperature of 550°C, a propane conversion of 26–28% at a propylene selectivity of up to 98.8% is achieved.
Добавил в систему: Смирнов Андрей Валентинович

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Modification of Acidic Properties of the Support for Pt–Sn/BEA Propane Dehydrogenation Catalystsстатья

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