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Synergy of Acidity and Morphology of Micro-/Mesoporous Materials in the Solid-Acid Alkylation of Toluene with 1-Deceneстатья
- Авторы: Sadovnikov Alexey A., Arapova Olga V., Russo Vincenzo, Maximov Anton L., Murzin Dmitry Yu, Naranov Evgeny R.
- Журнал: Industrial and Engineering Chemistry Research
- Том: 61
- Номер: 5
- Год издания: 2022
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 1994
- Последняя страница: 2009
- DOI: 10.1021/acs.iecr.1c04169
- Аннотация: Tuning the morphology of heterogeneous catalysts is of paramount importance for the design of efficient processes and requires detailed information on the physicochemical characteristics of the materials. Four micro-/mesoporous composites with different morphologies were synthesized by a dual-templating method using two-step crystallization with different zeolite seed concentrations. This work demonstrates the dependence of selectivity on the catalyst nature in solid-acid alkylation. It was demonstrated that a high concentration of weak acid sites leads to dialkyltoluene products, whereas a high concentration of strong acid sites is beneficial for other side reactions. It was shown that the morphology of catalysts played a crucial role in solid-acid alkylation. The alkylation mechanism defined in this study with different contributions of weak and strong acid sites could provide a route to the development of effective solid-acid catalysts.
- Добавил в систему: Захарян Елена Михайловна