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Catalytic Activity of H-Forms of Zeolites in the Isomerization of Supercritical n-Pentane and Their Physicochemical Propertiesстатья
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: 29 ноября 2015 г.
- Авторы: Bogdan V.I., Koklin A.E., Kazanskii V.B.
- Журнал: Kinetics and Catalysis
- Том: 51
- Номер: 5
- Год издания: 2010
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 736
- Последняя страница: 742
- DOI: 10.1134/S0023158410050162
- Аннотация: The acidic properties of the H-forms of zeolites ZSM-5, Beta, Y, and mordenite are studied by diffuse reflectance IR spectroscopy using n-pentane as a probe molecule. The decreasing order of Bronsted acid site strengths is constructed. The isopentane selectivity in n-pentane isomerization under supercritical conditions (260A degrees C, 130 atm) increases in the order H-ZSM-5 < H-Beta < H-mordenite(11) a parts per thousand H-Y with decreasing strength of Bronsted sites. Catalytic data are analyzed jointly with the results of physicochemical studies of H-mordenite (temperature-programmed ammonia desorption, benzene adsorption, and IR spectroscopy). Under the supercritical conditions, the conversion of n-pentane on mordenite is determined by the total acidity of the zeolite and also by the accessibility of the acid sites inside the zeolite channels to the reactant.
- Добавил в систему: Богдан Виктор Игнатьевич