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Acetone reaction pathways as a model bio-oxygenate in a hydrocarbon medium on zeolite Y and ZSM-5 catalysts: Isotope labeling studyстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 мая 2022 г.
- Авторы: Palankoev T.A., Dement'ev K.I., Kuznetsova D.V., Borisov R.S., Maximov A.L., Khadzhiev S.N.
- Журнал: Chemical Engineering Journal
- Том: 431
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 134228
- DOI: 10.1016/j.cej.2021.134228
- Аннотация: In this research the isotope labeling experiments were used to study the reaction pathways of acetone conversionin hydrocarbon medium in the presence Y and ZSM-5 zeolites. Acetone is a model for ketones, which are aconsiderable fraction of bio-oil. The analysis of the isotope distribution in the conversion products was carriedout by 1H NMR and GC/MS methods; it was shown that the deuterium labels introduced with acetone aredistributed mainly in C3-C4 olefins, as well as pentenes and 2-methylpentane. The results obtained correspondwith the previously proposed assumption that the catalytic cracking of ketones, capable to transform into enols,in a hydrocarbon medium starts with a nucleophilic attack of the protonated ketone on hydrocarbon intermediates.Additionally, the H/D exchange between deuterated compounds and cracking intermediates orzeolite has been established.
- Добавил в систему: Паланкоев Тимур Ахметович