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Comparison of Physicochemical Properties and Catalytic Activity in the m-Xylene Isomerization of Catalysts Based on ZSM-12 Zeolites Prepared at Hydrothermal Conditions and under the Action of Microwave Radiationстатья
- Авторы: Tsaplin D.E., Ostroumova V.A., Kulikov L.A., Naranov E.R., Egazar’yants S.V., Karakhanov E.A.
- Журнал: Russian Journal of Applied Chemistry
- Том: 94
- Номер: 9
- Год издания: 2021
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1204
- Последняя страница: 1213
- DOI: 10.1134/S1070427221090123
- Аннотация: The properties of ZSM-12 zeolites prepared under hydrothermal conditions and microwave radiationinfl uence were studied. The prepared zeolites are characterized by a wide range of physicochemical methodsof analysis: X-ray diff raction analysis, low-temperature nitrogen adsorption/desorption, scanning electronmicroscopy, solid-state 27Al and 29Si NMR spectroscopy, infrared spectroscopy, temperature-programmed desorptionof ammonia, infrared spectroscopy of adsorbed pyridine, and X-ray fl uorescence elemental analysis.The calcined zeolites were impregnated with 0.5 wt % Pt, which performs the hydrogenation function in thereaction under study. The obtained materials were studied in the m-xylene isomerization reaction under thefollowing conditions: Т = 300–440°С, WHSV = 1 h–1, Р(Н2) = 10 atm. It was found that, on the ZSM-12 MWcatalyst, owing to its high acidity and fi ne particles, which promote high mass transfer, it is possible to increasethe yields of m-xylene isomers, in particular p-xylene, to 36–65%.
- Добавил в систему: Наранов Евгений Русланович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | zhph_perevod.pdf | 1,1 МБ | 27 декабря 2021 [Naranov] |